23231012031 has 16 divisors (see below), whose sum is σ = 34431072000. Its totient is φ = 15480700344.

The previous prime is 23231012027. The next prime is 23231012033. The reversal of 23231012031 is 13021013232.

23231012031 is a `hidden beast` number, since 232 + 310 + 120 + 3 + 1 = 666.

It is not a de Polignac number, because 23231012031 - 2² = 23231012027 is a prime.

It is a super-2 number, since 2×23231012031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23231011995 and 23231012013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23231012033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119931 + ... + 246668.

It is an arithmetic number, because the mean of its divisors is an integer number (2151942000).

Almost surely, 2^23231012031 is an apocalyptic number.

23231012031 is a deficient number, since it is larger than the sum of its proper divisors (11200059969).

23231012031 is a wasteful number, since it uses less digits than its factorization.

23231012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368955 (or 368949 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23231012031 its reverse (13021013232), we get a palindrome (36252025263).

The spelling of 23231012031 in words is "twenty-three billion, two hundred thirty-one million, twelve thousand, thirty-one".