31421322120024 has 128 divisors (see below), whose sum is σ = 87543813888000. Its totient is φ = 10442337305472.

The previous prime is 31421322120007. The next prime is 31421322120053. The reversal of 31421322120024 is 42002122312413.

31421322120024 is a `hidden beast` number, since 3 + 1 + 4 + 213 + 221 + 200 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 31421322120024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96729622 + ... + 97053914.

It is an arithmetic number, because the mean of its divisors is an integer number (683936046000).

Almost surely, 2^{31421322120024} is an apocalyptic number.

It is an amenable number.

31421322120024 is an abundant number, since it is smaller than the sum of its proper divisors (56122491767976).

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

31421322120024 is a wasteful number, since it uses less digits than its factorization.

31421322120024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325654 (or 325644 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 31421322120024 its reverse (42002122312413), we get a palindrome (73423444432437).

The spelling of 31421322120024 in words is "thirty-one trillion, four hundred twenty-one billion, three hundred twenty-two million, one hundred twenty thousand, twenty-four".