1,231 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 1231 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

1231 is a prime number. Like all primes (except two), it is an odd number.

Prime factorization of 1231:


See below for interesting mathematical facts about the number 1231 from the Numbermatics database.

Names of 1231

  • Cardinal: 1231 can be written as One thousand, two hundred thirty-one.

Scientific notation

  • Scientific notation: 1.231 × 103

Factors of 1231

  • Number of distinct prime factors ω(n): 1
  • Total number of prime factors Ω(n): 1
  • Sum of prime factors: 1231

Divisors of 1231

  • Number of divisors d(n): 2
  • Complete list of divisors:
  • Sum of all divisors σ(n): 1232
  • Sum of proper divisors (its aliquot sum) s(n): 1
  • 1231 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 1230

Bases of 1231

  • Binary: 100110011112
  • Hexadecimal: 0x4CF
  • Base-36: Y7

Squares and roots of 1231

  • 1231 squared (12312) is 1515361
  • 1231 cubed (12313) is 1865409391
  • The square root of 1231 is 35.0856095857
  • The cube root of 1231 is 10.7173155453

Scales and comparisons

How big is 1231?
  • 1,231 seconds is equal to 20 minutes, 31 seconds.
  • To count from 1 to 1,231 would take you about twenty minutes.

    This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

  • A cube with a volume of 1231 cubic inches would be around 0.9 feet tall.

Recreational maths with 1231

  • 1231 backwards is 1321
  • The number of decimal digits it has is: 4
  • The sum of 1231's digits is 7
  • More coming soon!

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"Number 1231 - Facts about the integer". Numbermatics.com. 2022. Web. 9 August 2022.

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Numbermatics. (2022). Number 1231 - Facts about the integer. Retrieved 9 August 2022, from https://numbermatics.com/n/1231/

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Numbermatics. 2022. "Number 1231 - Facts about the integer". https://numbermatics.com/n/1231/

The information we have on file for 1231 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

Keywords: Divisors of 1231, math, Factors of 1231, curriculum, school, college, exams, university, Prime factorization of 1231, STEM, science, technology, engineering, physics, economics, calculator, one thousand, two hundred thirty-one.

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