321352400252 has 12 divisors (see below), whose sum is σ = 605625677496. Its totient is φ = 148316492400.

The previous prime is 321352400249. The next prime is 321352400269. The reversal of 321352400252 is 252004253123.

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, 3089926874 + ... + 3089926977.

It is an arithmetic number, because the mean of its divisors is an integer number (50468806458).

Almost surely, 2^321352400252 is an apocalyptic number.

It is an amenable number.

321352400252 is a deficient number, since it is larger than the sum of its proper divisors (284273277244).

321352400252 is a wasteful number, since it uses less digits than its factorization.

321352400252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6179853868 (or 6179853866 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 321352400252 its reverse (252004253123), we get a palindrome (573356653375).

The spelling of 321352400252 in words is "three hundred twenty-one billion, three hundred fifty-two million, four hundred thousand, two hundred fifty-two".