320031131404 has 48 divisors (see below), whose sum is σ = 586460915712. Its totient is φ = 152651562000.

The previous prime is 320031131351. The next prime is 320031131411. The reversal of 320031131404 is 404131130023.

It is a super-2 number, since 2×320031131404² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44377359 + ... + 44384569.

It is an arithmetic number, because the mean of its divisors is an integer number (12217935744).

Almost surely, 2^320031131404 is an apocalyptic number.

It is an amenable number.

320031131404 is a deficient number, since it is larger than the sum of its proper divisors (266429784308).

320031131404 is an frugal number, since it uses more digits than its factorization.

320031131404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7459 (or 7315 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 320031131404 its reverse (404131130023), we get a palindrome (724162261427).

The spelling of 320031131404 in words is "three hundred twenty billion, thirty-one million, one hundred thirty-one thousand, four hundred four".