31301110013 has 4 divisors (see below), whose sum is σ = 32029042848. Its totient is φ = 30573177180.

The previous prime is 31301110003. The next prime is 31301110097. The reversal of 31301110013 is 31001110313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31301110013 - 2²⁰ = 31300061437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31301110013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301110003) 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, 363966353 + ... + 363966438.

It is an arithmetic number, because the mean of its divisors is an integer number (8007260712).

Almost surely, 2^31301110013 is an apocalyptic number.

It is an amenable number.

31301110013 is a deficient number, since it is larger than the sum of its proper divisors (727932835).

31301110013 is an equidigital number, since it uses as much as digits as its factorization.

31301110013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727932834.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 31301110013 its reverse (31001110313), we get a palindrome (62302220326).

The spelling of 31301110013 in words is "thirty-one billion, three hundred one million, one hundred ten thousand, thirteen".