31033012113 has 16 divisors (see below), whose sum is σ = 48394561600. Its totient is φ = 19599796800.

The previous prime is 31033012103. The next prime is 31033012159. The reversal of 31033012113 is 31121033013.

It is a happy number.

31033012113 is a `hidden beast` number, since 310 + 330 + 1 + 21 + 1 + 3 = 666.

It is not a de Polignac number, because 31033012113 - 2²⁴ = 31016234897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31033012103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30246088 + ... + 30247113.

It is an arithmetic number, because the mean of its divisors is an integer number (3024660100).

Almost surely, 2^31033012113 is an apocalyptic number.

It is an amenable number.

31033012113 is a deficient number, since it is larger than the sum of its proper divisors (17361549487).

31033012113 is a wasteful number, since it uses less digits than its factorization.

31033012113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60493229 (or 60493223 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 31033012113 its reverse (31121033013), we get a palindrome (62154045126).

The spelling of 31033012113 in words is "thirty-one billion, thirty-three million, twelve thousand, one hundred thirteen".