320031002313 has 24 divisors (see below), whose sum is σ = 517920776256. Its totient is φ = 188716068000.

The previous prime is 320031002311. The next prime is 320031002327. The reversal of 320031002313 is 313200130023.

320031002313 is a `hidden beast` number, since 320 + 0 + 31 + 0 + 0 + 2 + 313 = 666.

It is not a de Polignac number, because 320031002313 - 2¹ = 320031002311 is a prime.

It is a super-2 number, since 2×320031002313² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320031002311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43680613 + ... + 43687938.

It is an arithmetic number, because the mean of its divisors is an integer number (21580032344).

Almost surely, 2^320031002313 is an apocalyptic number.

320031002313 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

320031002313 is a deficient number, since it is larger than the sum of its proper divisors (197889773943).

320031002313 is a wasteful number, since it uses less digits than its factorization.

320031002313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87368605 (or 87368602 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 320031002313 its reverse (313200130023), we get a palindrome (633231132336).

The spelling of 320031002313 in words is "three hundred twenty billion, thirty-one million, two thousand, three hundred thirteen".