31320113031011 has 16 divisors (see below), whose sum is σ = 36474984552384. Its totient is φ = 26335528462464.

The previous prime is 31320113031001. The next prime is 31320113031041. The reversal of 31320113031011 is 11013031102313.

It is a cyclic number.

It is not a de Polignac number, because 31320113031011 - 2²² = 31320108836707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31320113031001) 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, 3417056 + ... + 8620701.

It is an arithmetic number, because the mean of its divisors is an integer number (2279686534524).

Almost surely, 2^{31320113031011} is an apocalyptic number.

31320113031011 is a deficient number, since it is larger than the sum of its proper divisors (5154871521373).

31320113031011 is a wasteful number, since it uses less digits than its factorization.

31320113031011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12044830.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 31320113031011 its reverse (11013031102313), we get a palindrome (42333144133324).

The spelling of 31320113031011 in words is "thirty-one trillion, three hundred twenty billion, one hundred thirteen million, thirty-one thousand, eleven".