31013113001202 has 24 divisors (see below), whose sum is σ = 67198194364860. Its totient is φ = 10337224919040.

The previous prime is 31013113001201. The next prime is 31013113001239. The reversal of 31013113001202 is 20210031131013.

31013113001202 is a `hidden beast` number, since 31 + 0 + 1 + 311 + 300 + 1 + 20 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30909719241801 + 103393759401 = 5559651^2 + 321549^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (31013113001201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39552199 + ... + 40328682.

Almost surely, 2^{31013113001202} is an apocalyptic number.

31013113001202 is an abundant number, since it is smaller than the sum of its proper divisors (36185081363658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31013113001202 is a wasteful number, since it uses less digits than its factorization.

31013113001202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79902458 (or 79902455 counting only the distinct ones).

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

Adding to 31013113001202 its reverse (20210031131013), we get a palindrome (51223144132215).

The spelling of 31013113001202 in words is "thirty-one trillion, thirteen billion, one hundred thirteen million, one thousand, two hundred two".