320323331000 has 64 divisors (see below), whose sum is σ = 762261084000. Its totient is φ = 125957625600.

The previous prime is 320323330993. The next prime is 320323331017. The reversal of 320323331000 is 133323023.

It is a super-2 number, since 2×320323331000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2655605 + ... + 2773604.

Almost surely, 2^320323331000 is an apocalyptic number.

It is an amenable number.

320323331000 is an abundant number, since it is smaller than the sum of its proper divisors (441937753000).

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

320323331000 is a wasteful number, since it uses less digits than its factorization.

320323331000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5429289 (or 5429275 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 320323331000 its reverse (133323023), we get a palindrome (320456654023).

The spelling of 320323331000 in words is "three hundred twenty billion, three hundred twenty-three million, three hundred thirty-one thousand".