31121514641424 has 80 divisors (see below), whose sum is σ = 81368343467712. Its totient is φ = 10248542882304.

The previous prime is 31121514641353. The next prime is 31121514641489. The reversal of 31121514641424 is 42414641512113.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158772022 + ... + 158967914.

Almost surely, 2^{31121514641424} is an apocalyptic number.

It is an amenable number.

31121514641424 is an abundant number, since it is smaller than the sum of its proper divisors (50246828826288).

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

31121514641424 is a wasteful number, since it uses less digits than its factorization.

31121514641424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235864 (or 235858 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The spelling of 31121514641424 in words is "thirty-one trillion, one hundred twenty-one billion, five hundred fourteen million, six hundred forty-one thousand, four hundred twenty-four".