31121134530104 has 16 divisors (see below), whose sum is σ = 58357311043200. Its totient is φ = 15559184918592.

The previous prime is 31121134530091. The next prime is 31121134530113. The reversal of 31121134530104 is 40103543112113.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 172697624 + ... + 172877735.

It is an arithmetic number, because the mean of its divisors is an integer number (3647331940200).

Almost surely, 2^{31121134530104} is an apocalyptic number.

It is an amenable number.

31121134530104 is a deficient number, since it is larger than the sum of its proper divisors (27236176513096).

31121134530104 is a wasteful number, since it uses less digits than its factorization.

31121134530104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345586622 (or 345586618 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 31121134530104 its reverse (40103543112113), we get a palindrome (71224677642217).

The spelling of 31121134530104 in words is "thirty-one trillion, one hundred twenty-one billion, one hundred thirty-four million, five hundred thirty thousand, one hundred four".