23311012131 has 24 divisors (see below), whose sum is σ = 36752851200. Its totient is φ = 14120060400.

The previous prime is 23311012129. The next prime is 23311012139. The reversal of 23311012131 is 13121011332.

It is not a de Polignac number, because 23311012131 - 2¹ = 23311012129 is a prime.

It is a super-2 number, since 2×23311012131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23311012139) 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, 116970 + ... + 245568.

It is an arithmetic number, because the mean of its divisors is an integer number (1531368800).

Almost surely, 2^23311012131 is an apocalyptic number.

23311012131 is a deficient number, since it is larger than the sum of its proper divisors (13441839069).

23311012131 is a wasteful number, since it uses less digits than its factorization.

23311012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130447 (or 130444 counting only the distinct ones).

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

Adding to 23311012131 its reverse (13121011332), we get a palindrome (36432023463).

The spelling of 23311012131 in words is "twenty-three billion, three hundred eleven million, twelve thousand, one hundred thirty-one".