10312031131 has 4 divisors (see below), whose sum is σ = 10314368064. Its totient is φ = 10309694200.

The previous prime is 10312031123. The next prime is 10312031167. The reversal of 10312031131 is 13113021301.

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 10312031131 - 2³ = 10312031123 is a prime.

It is a super-2 number, since 2×10312031131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10312032131) 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, 1161835 + ... + 1170676.

It is an arithmetic number, because the mean of its divisors is an integer number (2578592016).

Almost surely, 2^10312031131 is an apocalyptic number.

10312031131 is a deficient number, since it is larger than the sum of its proper divisors (2336933).

10312031131 is an equidigital number, since it uses as much as digits as its factorization.

10312031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336932.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 10312031131 its reverse (13113021301), we get a palindrome (23425052432).

The spelling of 10312031131 in words is "ten billion, three hundred twelve million, thirty-one thousand, one hundred thirty-one".