31131433013304 has 32 divisors (see below), whose sum is σ = 83815396575120. Its totient is φ = 9578902465536.

The previous prime is 31131433013293. The next prime is 31131433013323. The reversal of 31131433013304 is 40331033413113.

31131433013304 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×31131433013304² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49890116697 + ... + 49890117320.

Almost surely, 2^{31131433013304} is an apocalyptic number.

It is an amenable number.

31131433013304 is an abundant number, since it is smaller than the sum of its proper divisors (52683963561816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31131433013304 is a wasteful number, since it uses less digits than its factorization.

31131433013304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99780234039 (or 99780234035 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 31131433013304 its reverse (40331033413113), we get a palindrome (71462466426417).

The spelling of 31131433013304 in words is "thirty-one trillion, one hundred thirty-one billion, four hundred thirty-three million, thirteen thousand, three hundred four".