23320311131 has 32 divisors (see below), whose sum is σ = 26777253888. Its totient is φ = 20155806720.

The previous prime is 23320311127. The next prime is 23320311137. The reversal of 23320311131 is 13111302332.

It is a cyclic number.

It is not a de Polignac number, because 23320311131 - 2² = 23320311127 is a prime.

It is a super-2 number, since 2×23320311131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23320311137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1847915 + ... + 1860491.

It is an arithmetic number, because the mean of its divisors is an integer number (836789184).

Almost surely, 2^23320311131 is an apocalyptic number.

23320311131 is a deficient number, since it is larger than the sum of its proper divisors (3456942757).

23320311131 is a wasteful number, since it uses less digits than its factorization.

23320311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12771.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 23320311131 its reverse (13111302332), we get a palindrome (36431613463).

The spelling of 23320311131 in words is "twenty-three billion, three hundred twenty million, three hundred eleven thousand, one hundred thirty-one".