31020002131113 has 40 divisors (see below), whose sum is σ = 48499323297216. Its totient is φ = 19721109592800.

The previous prime is 31020002131103. The next prime is 31020002131117. The reversal of 31020002131113 is 31113120002013.

31020002131113 is a `hidden beast` number, since 310 + 20 + 0 + 0 + 21 + 311 + 1 + 3 = 666.

It is not a de Polignac number, because 31020002131113 - 2⁶ = 31020002131049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31020002131117) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24535258 + ... + 25768563.

Almost surely, 2^{31020002131113} is an apocalyptic number.

It is an amenable number.

31020002131113 is a deficient number, since it is larger than the sum of its proper divisors (17479321166103).

31020002131113 is a wasteful number, since it uses less digits than its factorization.

31020002131113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50304187 (or 50304178 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 31020002131113 its reverse (31113120002013), we get a palindrome (62133122133126).

The spelling of 31020002131113 in words is "thirty-one trillion, twenty billion, two million, one hundred thirty-one thousand, one hundred thirteen".