23131012031 has 8 divisors (see below), whose sum is σ = 23317307904. Its totient is φ = 22944781440.

The previous prime is 23131012013. The next prime is 23131012033. The reversal of 23131012031 is 13021013132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23131012031 is a prime.

It is a super-2 number, since 2×23131012031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131012033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900851 + ... + 926171.

It is an arithmetic number, because the mean of its divisors is an integer number (2914663488).

Almost surely, 2^23131012031 is an apocalyptic number.

23131012031 is a deficient number, since it is larger than the sum of its proper divisors (186295873).

23131012031 is a wasteful number, since it uses less digits than its factorization.

23131012031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32641.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 23131012031 its reverse (13021013132), we get a palindrome (36152025163).

It can be divided in two parts, 2313101 and 2031, that added together give a palindrome (2315132).

The spelling of 23131012031 in words is "twenty-three billion, one hundred thirty-one million, twelve thousand, thirty-one".