31321014324220 has 48 divisors (see below), whose sum is σ = 67035705408000. Its totient is φ = 12289879103040.

The previous prime is 31321014324181. The next prime is 31321014324263. The reversal of 31321014324220 is 2242341012313.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55137150 + ... + 55702309.

It is an arithmetic number, because the mean of its divisors is an integer number (1396577196000).

Almost surely, 2^{31321014324220} is an apocalyptic number.

It is an amenable number.

31321014324220 is an abundant number, since it is smaller than the sum of its proper divisors (35714691083780).

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

31321014324220 is a wasteful number, since it uses less digits than its factorization.

31321014324220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110839738 (or 110839736 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31321014324220 its reverse (2242341012313), we get a palindrome (33563355336533).

The spelling of 31321014324220 in words is "thirty-one trillion, three hundred twenty-one billion, fourteen million, three hundred twenty-four thousand, two hundred twenty".