31031734013204 has 24 divisors (see below), whose sum is σ = 54654922049280. Its totient is φ = 15416054630496.

The previous prime is 31031734013201. The next prime is 31031734013213. The reversal of 31031734013204 is 40231043713013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31031734013201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8305577 + ... + 11447535.

It is an arithmetic number, because the mean of its divisors is an integer number (2277288418720).

Almost surely, 2^{31031734013204} is an apocalyptic number.

It is an amenable number.

31031734013204 is a deficient number, since it is larger than the sum of its proper divisors (23623188036076).

31031734013204 is a wasteful number, since it uses less digits than its factorization.

31031734013204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157847 (or 3157845 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 31031734013204 its reverse (40231043713013), we get a palindrome (71262777726217).

The spelling of 31031734013204 in words is "thirty-one trillion, thirty-one billion, seven hundred thirty-four million, thirteen thousand, two hundred four".