320313401331 has 16 divisors (see below), whose sum is σ = 532469031168. Its totient is φ = 166396572000.

The previous prime is 320313401299. The next prime is 320313401339. The reversal of 320313401331 is 133104313023.

It is a happy number.

It is not a de Polignac number, because 320313401331 - 2⁵ = 320313401299 is a prime.

It is a super-2 number, since 2×320313401331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320313401339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693318820 + ... + 693319281.

It is an arithmetic number, because the mean of its divisors is an integer number (33279314448).

Almost surely, 2^320313401331 is an apocalyptic number.

320313401331 is a deficient number, since it is larger than the sum of its proper divisors (212155629837).

320313401331 is a wasteful number, since it uses less digits than its factorization.

320313401331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386638122.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 320313401331 its reverse (133104313023), we get a palindrome (453417714354).

The spelling of 320313401331 in words is "three hundred twenty billion, three hundred thirteen million, four hundred one thousand, three hundred thirty-one".