320321002312 has 16 divisors (see below), whose sum is σ = 600617803500. Its totient is φ = 160156254720.

The previous prime is 320321002279. The next prime is 320321002333. The reversal of 320321002312 is 213200123023.

It can be written as a sum of positive squares in 2 ways, for example, as 317065843396 + 3255158916 = 563086^2 + 57054^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 320321002312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197937 + ... + 824512.

Almost surely, 2^320321002312 is an apocalyptic number.

It is an amenable number.

320321002312 is a deficient number, since it is larger than the sum of its proper divisors (280296801188).

320321002312 is a wasteful number, since it uses less digits than its factorization.

320321002312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061616 (or 1061612 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 320321002312 its reverse (213200123023), we get a palindrome (533521125335).

The spelling of 320321002312 in words is "three hundred twenty billion, three hundred twenty-one million, two thousand, three hundred twelve".