320321301313 has 32 divisors (see below), whose sum is σ = 366747242400. Its totient is φ = 277152399360.

The previous prime is 320321301301. The next prime is 320321301361. The reversal of 320321301313 is 313103123023.

It can be written as a sum of positive squares in 16 ways, for example, as 50926046224 + 269395255089 = 225668^2 + 519033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320321301313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320321302313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58782613 + ... + 58788061.

It is an arithmetic number, because the mean of its divisors is an integer number (11460851325).

Almost surely, 2^320321301313 is an apocalyptic number.

It is an amenable number.

320321301313 is a deficient number, since it is larger than the sum of its proper divisors (46425941087).

320321301313 is a wasteful number, since it uses less digits than its factorization.

320321301313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6517.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 320321301313 its reverse (313103123023), we get a palindrome (633424424336).

The spelling of 320321301313 in words is "three hundred twenty billion, three hundred twenty-one million, three hundred one thousand, three hundred thirteen".