321023111312 has 40 divisors (see below), whose sum is σ = 631417836672. Its totient is φ = 158081414400.

The previous prime is 321023111249. The next prime is 321023111399. The reversal of 321023111312 is 213111320123.

It is a happy number.

It is a super-2 number, since 2×321023111312² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913637 + ... + 1215227.

Almost surely, 2^321023111312 is an apocalyptic number.

It is an amenable number.

321023111312 is a deficient number, since it is larger than the sum of its proper divisors (310394725360).

321023111312 is a wasteful number, since it uses less digits than its factorization.

321023111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302607 (or 302601 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 321023111312 its reverse (213111320123), we get a palindrome (534134431435).

The spelling of 321023111312 in words is "three hundred twenty-one billion, twenty-three million, one hundred eleven thousand, three hundred twelve".