31013301020113 has 4 divisors (see below), whose sum is σ = 31598457643188. Its totient is φ = 30428144397040.

The previous prime is 31013301020089. The next prime is 31013301020167. The reversal of 31013301020113 is 31102010331013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13824922003344 + 17188379016769 = 3718188^2 + 4145887^2 .

It is a cyclic number.

It is not a de Polignac number, because 31013301020113 - 2¹⁷ = 31013300889041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31013301020413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292578311458 + ... + 292578311563.

It is an arithmetic number, because the mean of its divisors is an integer number (7899614410797).

Almost surely, 2^{31013301020113} is an apocalyptic number.

It is an amenable number.

31013301020113 is a deficient number, since it is larger than the sum of its proper divisors (585156623075).

31013301020113 is an equidigital number, since it uses as much as digits as its factorization.

31013301020113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585156623074.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31013301020113 its reverse (31102010331013), we get a palindrome (62115311351126).

The spelling of 31013301020113 in words is "thirty-one trillion, thirteen billion, three hundred one million, twenty thousand, one hundred thirteen".