23012111331 has 24 divisors (see below), whose sum is σ = 36326697264. Its totient is φ = 13921661760.

The previous prime is 23012111321. The next prime is 23012111351. The reversal of 23012111331 is 13311121032.

23012111331 is a `hidden beast` number, since 2 + 301 + 21 + 11 + 331 = 666.

It is not a de Polignac number, because 23012111331 - 2⁶ = 23012111267 is a prime.

It is a super-2 number, since 2×23012111331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23012111321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153516 + ... + 263801.

It is an arithmetic number, because the mean of its divisors is an integer number (1513612386).

Almost surely, 2^23012111331 is an apocalyptic number.

23012111331 is a deficient number, since it is larger than the sum of its proper divisors (13314585933).

23012111331 is a wasteful number, since it uses less digits than its factorization.

23012111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417891 (or 417888 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 23012111331 its reverse (13311121032), we get a palindrome (36323232363).

The spelling of 23012111331 in words is "twenty-three billion, twelve million, one hundred eleven thousand, three hundred thirty-one".