31321322113232 has 20 divisors (see below), whose sum is σ = 60685151229120. Its totient is φ = 15660637925088.

The previous prime is 31321322113189. The next prime is 31321322113243. The reversal of 31321322113232 is 23231122312313.

It is a junction number, because it is equal to n+sod(n) for n = 31321322113195 and 31321322113204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16401983 + ... + 18211745.

It is an arithmetic number, because the mean of its divisors is an integer number (3034257561456).

Almost surely, 2^{31321322113232} is an apocalyptic number.

It is an amenable number.

31321322113232 is a deficient number, since it is larger than the sum of its proper divisors (29363829115888).

31321322113232 is a wasteful number, since it uses less digits than its factorization.

31321322113232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891450 (or 2891444 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

Adding to 31321322113232 its reverse (23231122312313), we get a palindrome (54552444425545).

The spelling of 31321322113232 in words is "thirty-one trillion, three hundred twenty-one billion, three hundred twenty-two million, one hundred thirteen thousand, two hundred thirty-two".