320000323312 has 20 divisors (see below), whose sum is σ = 634419247000. Its totient is φ = 156279227328.

The previous prime is 320000323273. The next prime is 320000323337. The reversal of 320000323312 is 213323000023.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 320000323312.

It is a congruent number.

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, 232557687 + ... + 232559062.

It is an arithmetic number, because the mean of its divisors is an integer number (31720962350).

Almost surely, 2^320000323312 is an apocalyptic number.

It is an amenable number.

320000323312 is a deficient number, since it is larger than the sum of its proper divisors (314418923688).

320000323312 is a wasteful number, since it uses less digits than its factorization.

320000323312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465116800 (or 465116794 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 320000323312 its reverse (213323000023), we get a palindrome (533323323335).

The spelling of 320000323312 in words is "three hundred twenty billion, three hundred twenty-three thousand, three hundred twelve".