23312331131 has 4 divisors (see below), whose sum is σ = 23313528264. Its totient is φ = 23311134000.

The previous prime is 23312331113. The next prime is 23312331151. The reversal of 23312331131 is 13113321332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23312331131 - 2¹⁴ = 23312314747 is a prime.

It is a super-2 number, since 2×23312331131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23312331097 and 23312331106.

It is not an unprimeable number, because it can be changed into a prime (23312331151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568865 + ... + 608466.

It is an arithmetic number, because the mean of its divisors is an integer number (5828382066).

Almost surely, 2^23312331131 is an apocalyptic number.

23312331131 is a deficient number, since it is larger than the sum of its proper divisors (1197133).

23312331131 is a wasteful number, since it uses less digits than its factorization.

23312331131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197132.

The product of its digits is 972, while the sum is 23.

Adding to 23312331131 its reverse (13113321332), we get a palindrome (36425652463).

The spelling of 23312331131 in words is "twenty-three billion, three hundred twelve million, three hundred thirty-one thousand, one hundred thirty-one".