2312831231 has 2 divisors, whose sum is σ = 2312831232. Its totient is φ = 2312831230.

The previous prime is 2312831207. The next prime is 2312831233. The reversal of 2312831231 is 1321382132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2312831231 - 2³⁰ = 1239089407 is a prime.

It is a super-2 number, since 2×2312831231² = 10698376606177950722, which contains 22 as substring.

Together with 2312831233, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2312831231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2312831233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156415615 + 1156415616.

It is an arithmetic number, because the mean of its divisors is an integer number (1156415616).

Almost surely, 2^2312831231 is an apocalyptic number.

2312831231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312831231 is an equidigital number, since it uses as much as digits as its factorization.

2312831231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 2312831231 is about 48091.9040068076. The cubic root of 2312831231 is about 1322.4562528306.

The spelling of 2312831231 in words is "two billion, three hundred twelve million, eight hundred thirty-one thousand, two hundred thirty-one".