31310104420121 has 16 divisors (see below), whose sum is σ = 32331315609600. Its totient is φ = 30289595835600.

The previous prime is 31310104420099. The next prime is 31310104420229. The reversal of 31310104420121 is 12102440101313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31310104420121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31310104420421) 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, 1511168000 + ... + 1511188718.

It is an arithmetic number, because the mean of its divisors is an integer number (2020707225600).

Almost surely, 2^{31310104420121} is an apocalyptic number.

31310104420121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31310104420121 is a deficient number, since it is larger than the sum of its proper divisors (1021211189479).

31310104420121 is a wasteful number, since it uses less digits than its factorization.

31310104420121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35300.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 31310104420121 its reverse (12102440101313), we get a palindrome (43412544521434).

The spelling of 31310104420121 in words is "thirty-one trillion, three hundred ten billion, one hundred four million, four hundred twenty thousand, one hundred twenty-one".