31310004133 has 16 divisors (see below), whose sum is σ = 33935267520. Its totient is φ = 28772303616.

The previous prime is 31310004113. The next prime is 31310004139. The reversal of 31310004133 is 33140001313.

It is a de Polignac number, because none of the positive numbers 2^k-31310004133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31310004133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31310004139) 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, 2529666 + ... + 2542012.

It is an arithmetic number, because the mean of its divisors is an integer number (2120954220).

Almost surely, 2^31310004133 is an apocalyptic number.

It is an amenable number.

31310004133 is a deficient number, since it is larger than the sum of its proper divisors (2625263387).

31310004133 is a wasteful number, since it uses less digits than its factorization.

31310004133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15876.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31310004133 its reverse (33140001313), we get a palindrome (64450005446).

The spelling of 31310004133 in words is "thirty-one billion, three hundred ten million, four thousand, one hundred thirty-three".