320321300132 has 24 divisors (see below), whose sum is σ = 576994937400. Its totient is φ = 155484887040.

The previous prime is 320321300129. The next prime is 320321300137. The reversal of 320321300132 is 231003123023.

It can be written as a sum of positive squares in 4 ways, for example, as 188446282816 + 131875017316 = 434104^2 + 363146^2 .

It is not an unprimeable number, because it can be changed into a prime (320321300137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2343719 + ... + 2476622.

It is an arithmetic number, because the mean of its divisors is an integer number (24041455725).

Almost surely, 2^320321300132 is an apocalyptic number.

It is an amenable number.

320321300132 is a deficient number, since it is larger than the sum of its proper divisors (256673637268).

320321300132 is a wasteful number, since it uses less digits than its factorization.

320321300132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4820831 (or 4820829 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 320321300132 its reverse (231003123023), we get a palindrome (551324423155).

The spelling of 320321300132 in words is "three hundred twenty billion, three hundred twenty-one million, three hundred thousand, one hundred thirty-two".