320320032321012 has 12 divisors (see below), whose sum is σ = 747413408749056. Its totient is φ = 106773344107000.

The previous prime is 320320032321011. The next prime is 320320032321041. The reversal of 320320032321012 is 210123230023023.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×320320032321012² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320320032321011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13346668013364 + ... + 13346668013387.

It is an arithmetic number, because the mean of its divisors is an integer number (62284450729088).

Almost surely, 2^{320320032321012} is an apocalyptic number.

It is an amenable number.

320320032321012 is an abundant number, since it is smaller than the sum of its proper divisors (427093376428044).

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

320320032321012 is a wasteful number, since it uses less digits than its factorization.

320320032321012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26693336026758 (or 26693336026756 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 320320032321012 its reverse (210123230023023), we get a palindrome (530443262344035).

The spelling of 320320032321012 in words is "three hundred twenty trillion, three hundred twenty billion, thirty-two million, three hundred twenty-one thousand, twelve".