23231312111331 has 12 divisors (see below), whose sum is σ = 33933377242440. Its totient is φ = 15313524087840.

The previous prime is 23231312111251. The next prime is 23231312111339. The reversal of 23231312111331 is 13311121313232.

23231312111331 is a `hidden beast` number, since 2 + 3 + 2 + 3 + 1 + 312 + 1 + 11 + 331 = 666.

It is not a de Polignac number, because 23231312111331 - 2²³ = 23231303722723 is a prime.

It is a super-2 number, since 2×23231312111331² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23231312111295 and 23231312111304.

It is not an unprimeable number, because it can be changed into a prime (23231312111339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14501442465 + ... + 14501444066.

It is an arithmetic number, because the mean of its divisors is an integer number (2827781436870).

Almost surely, 2^{23231312111331} is an apocalyptic number.

23231312111331 is a deficient number, since it is larger than the sum of its proper divisors (10702065131109).

23231312111331 is a wasteful number, since it uses less digits than its factorization.

23231312111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29002886626 (or 29002886623 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

Adding to 23231312111331 its reverse (13311121313232), we get a palindrome (36542433424563).

The spelling of 23231312111331 in words is "twenty-three trillion, two hundred thirty-one billion, three hundred twelve million, one hundred eleven thousand, three hundred thirty-one".