5131252631313 has 24 divisors (see below), whose sum is σ = 7615316033000. Its totient is φ = 3326986358784.

The previous prime is 5131252631209. The next prime is 5131252631321. The reversal of 5131252631313 is 3131362521315.

5131252631313 is a `hidden beast` number, since 5 + 1 + 3 + 1 + 2 + 5 + 2 + 631 + 3 + 13 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1063173396609 + 4068079234704 = 1031103^2 + 2016948^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5131252631313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5131252631333) 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, 2429488 + ... + 4020561.

Almost surely, 2^{5131252631313} is an apocalyptic number.

It is an amenable number.

5131252631313 is a deficient number, since it is larger than the sum of its proper divisors (2484063401687).

5131252631313 is a wasteful number, since it uses less digits than its factorization.

5131252631313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6452481 (or 6452478 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The spelling of 5131252631313 in words is "five trillion, one hundred thirty-one billion, two hundred fifty-two million, six hundred thirty-one thousand, three hundred thirteen".