321322513352 has 16 divisors (see below), whose sum is σ = 617174340300. Its totient is φ = 156742689280.

The previous prime is 321322513261. The next prime is 321322513397. The reversal of 321322513352 is 253315223123.

It can be written as a sum of positive squares in 2 ways, for example, as 319489474756 + 1833038596 = 565234^2 + 42814^2 .

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, 489820577 + ... + 489821232.

Almost surely, 2^321322513352 is an apocalyptic number.

It is an amenable number.

321322513352 is a deficient number, since it is larger than the sum of its proper divisors (295851826948).

321322513352 is a wasteful number, since it uses less digits than its factorization.

321322513352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979641856 (or 979641852 counting only the distinct ones).

The product of its digits is 32400, while the sum is 32.

Adding to 321322513352 its reverse (253315223123), we get a palindrome (574637736475).

The spelling of 321322513352 in words is "three hundred twenty-one billion, three hundred twenty-two million, five hundred thirteen thousand, three hundred fifty-two".