31013233321113 has 12 divisors (see below), whose sum is σ = 44797795891888. Its totient is φ = 20675071965240.

The previous prime is 31013233321079. The next prime is 31013233321117. The reversal of 31013233321113 is 31112333231013.

31013233321113 is a `hidden beast` number, since 3 + 1 + 0 + 1 + 323 + 3 + 321 + 1 + 13 = 666.

It is not a de Polignac number, because 31013233321113 - 2⁸ = 31013233320857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31013233321117) 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, 34271503 + ... + 35164788.

Almost surely, 2^{31013233321113} is an apocalyptic number.

It is an amenable number.

31013233321113 is a deficient number, since it is larger than the sum of its proper divisors (13784562570775).

31013233321113 is a wasteful number, since it uses less digits than its factorization.

31013233321113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69485924 (or 69485921 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 31013233321113 its reverse (31112333231013), we get a palindrome (62125566552126).

The spelling of 31013233321113 in words is "thirty-one trillion, thirteen billion, two hundred thirty-three million, three hundred twenty-one thousand, one hundred thirteen".