31002002131130 has 64 divisors (see below), whose sum is σ = 57880130424480. Its totient is φ = 11946579840000.

The previous prime is 31002002131103. The next prime is 31002002131189. The reversal of 31002002131130 is 3113120020013.

It can be written as a sum of positive squares in 16 ways, for example, as 11359050161761 + 19642951969369 = 3370319^2 + 4432037^2 .

It is a super-2 number, since 2×31002002131130² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31002002131099 and 31002002131108.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14325380 + ... + 16346880.

Almost surely, 2^{31002002131130} is an apocalyptic number.

31002002131130 is a deficient number, since it is larger than the sum of its proper divisors (26878128293350).

31002002131130 is a wasteful number, since it uses less digits than its factorization.

31002002131130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021955.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31002002131130 its reverse (3113120020013), we get a palindrome (34115122151143).

The spelling of 31002002131130 in words is "thirty-one trillion, two billion, two million, one hundred thirty-one thousand, one hundred thirty".