31100113123013 has 16 divisors (see below), whose sum is σ = 35692175966400. Its totient is φ = 26835228564480.

The previous prime is 31100113122817. The next prime is 31100113123039. The reversal of 31100113123013 is 31032131100113.

It is a de Polignac number, because none of the positive numbers 2^k-31100113123013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100113129013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 826188956 + ... + 826226597.

It is an arithmetic number, because the mean of its divisors is an integer number (2230760997900).

Almost surely, 2^{31100113123013} is an apocalyptic number.

It is an amenable number.

31100113123013 is a deficient number, since it is larger than the sum of its proper divisors (4592062843387).

31100113123013 is a wasteful number, since it uses less digits than its factorization.

31100113123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652415652.

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

Adding to 31100113123013 its reverse (31032131100113), we get a palindrome (62132244223126).

The spelling of 31100113123013 in words is "thirty-one trillion, one hundred billion, one hundred thirteen million, one hundred twenty-three thousand, thirteen".