321512054232 has 64 divisors (see below), whose sum is σ = 816609980160. Its totient is φ = 105465628800.

The previous prime is 321512054221. The next prime is 321512054249. The reversal of 321512054232 is 232450215123.

It is a self number, because there is not a number n which added to its sum of digits gives 321512054232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747483 + ... + 1096245.

It is an arithmetic number, because the mean of its divisors is an integer number (12759530940).

Almost surely, 2^321512054232 is an apocalyptic number.

It is an amenable number.

321512054232 is an abundant number, since it is smaller than the sum of its proper divisors (495097925928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321512054232 is a wasteful number, since it uses less digits than its factorization.

321512054232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349384 (or 349380 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 321512054232 its reverse (232450215123), we get a palindrome (553962269355).

The spelling of 321512054232 in words is "three hundred twenty-one billion, five hundred twelve million, fifty-four thousand, two hundred thirty-two".