23131068931 has 2 divisors, whose sum is σ = 23131068932. Its totient is φ = 23131068930.

The previous prime is 23131068929. The next prime is 23131068949. The reversal of 23131068931 is 13986013132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23131068931 - 2¹ = 23131068929 is a prime.

It is a super-3 number, since 3×23131068931³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 23131068929, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23131048931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565534465 + 11565534466.

It is an arithmetic number, because the mean of its divisors is an integer number (11565534466).

Almost surely, 2^23131068931 is an apocalyptic number.

23131068931 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131068931 is an equidigital number, since it uses as much as digits as its factorization.

23131068931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 23131068931 in words is "twenty-three billion, one hundred thirty-one million, sixty-eight thousand, nine hundred thirty-one".