2312012131 has 16 divisors (see below), whose sum is σ = 2859171840. Its totient is φ = 1838034720.

The previous prime is 2312012123. The next prime is 2312012177. The reversal of 2312012131 is 1312102132.

It is a cyclic number.

It is not a de Polignac number, because 2312012131 - 2³ = 2312012123 is a prime.

It is a super-2 number, since 2×2312012131² = 10690800187782322322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2312012191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422755 + ... + 428188.

It is an arithmetic number, because the mean of its divisors is an integer number (178698240).

Almost surely, 2^2312012131 is an apocalyptic number.

2312012131 is a deficient number, since it is larger than the sum of its proper divisors (547159709).

2312012131 is a wasteful number, since it uses less digits than its factorization.

2312012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850986.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2312012131 is about 48083.3872662898. The cubic root of 2312012131 is about 1322.3001163742.

Adding to 2312012131 its reverse (1312102132), we get a palindrome (3624114263).

Subtracting from 2312012131 its reverse (1312102132), we obtain a palindrome (999909999).

It can be divided in two parts, 231201 and 2131, that added together give a palindrome (233332).

The spelling of 2312012131 in words is "two billion, three hundred twelve million, twelve thousand, one hundred thirty-one".