320204331304 has 128 divisors (see below), whose sum is σ = 748490803200. Its totient is φ = 126331349760.

The previous prime is 320204331277. The next prime is 320204331371. The reversal of 320204331304 is 403133402023.

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 31 ways as a sum of consecutive naturals, for example, 1449277 + ... + 1655539.

It is an arithmetic number, because the mean of its divisors is an integer number (5847584400).

Almost surely, 2^320204331304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320204331304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374245401600).

320204331304 is an abundant number, since it is smaller than the sum of its proper divisors (428286471896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320204331304 is a wasteful number, since it uses less digits than its factorization.

320204331304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206375 (or 206371 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 320204331304 its reverse (403133402023), we get a palindrome (723337733327).

The spelling of 320204331304 in words is "three hundred twenty billion, two hundred four million, three hundred thirty-one thousand, three hundred four".