320331320032 has 24 divisors (see below), whose sum is σ = 632641745736. Its totient is φ = 159660400512.

The previous prime is 320331320009. The next prime is 320331320083. The reversal of 320331320032 is 230023133023.

It is a super-2 number, since 2×320331320032² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320331319985 and 320331320012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15779058 + ... + 15799345.

It is an arithmetic number, because the mean of its divisors is an integer number (26360072739).

Almost surely, 2^320331320032 is an apocalyptic number.

320331320032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320331320032 is a deficient number, since it is larger than the sum of its proper divisors (312310425704).

320331320032 is a wasteful number, since it uses less digits than its factorization.

320331320032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31578730 (or 31578722 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 320331320032 its reverse (230023133023), we get a palindrome (550354453055).

The spelling of 320331320032 in words is "three hundred twenty billion, three hundred thirty-one million, three hundred twenty thousand, thirty-two".