23131134412931 has 2 divisors, whose sum is σ = 23131134412932. Its totient is φ = 23131134412930.

The previous prime is 23131134412847. The next prime is 23131134412933. The reversal of 23131134412931 is 13921443113132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23131134412931 is a prime.

It is a super-2 number, since 2×23131134412931² (a number of 28 digits) contains 22 as substring.

Together with 23131134412933, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23131134412933) 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, 11565567206465 + 11565567206466.

It is an arithmetic number, because the mean of its divisors is an integer number (11565567206466).

Almost surely, 2^{23131134412931} is an apocalyptic number.

23131134412931 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131134412931 is an equidigital number, since it uses as much as digits as its factorization.

23131134412931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The spelling of 23131134412931 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred thirty-four million, four hundred twelve thousand, nine hundred thirty-one".