31013002321103 has 32 divisors (see below), whose sum is σ = 35520716574720. Its totient is φ = 26820053568000.

The previous prime is 31013002321069. The next prime is 31013002321109. The reversal of 31013002321103 is 30112320031013.

It is not a de Polignac number, because 31013002321103 - 2²⁴ = 31012985543887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013002321109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6258593 + ... + 10059621.

It is an arithmetic number, because the mean of its divisors is an integer number (1110022392960).

Almost surely, 2^{31013002321103} is an apocalyptic number.

31013002321103 is a deficient number, since it is larger than the sum of its proper divisors (4507714253617).

31013002321103 is a wasteful number, since it uses less digits than its factorization.

31013002321103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3801479.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31013002321103 its reverse (30112320031013), we get a palindrome (61125322352116).

The spelling of 31013002321103 in words is "thirty-one trillion, thirteen billion, two million, three hundred twenty-one thousand, one hundred three".