321213134402004 has 48 divisors (see below), whose sum is σ = 807159066956480. Its totient is φ = 98833817053440.

The previous prime is 321213134401903. The next prime is 321213134402057. The reversal of 321213134402004 is 400204431312123.

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, 5294607 + ... + 25893225.

Almost surely, 2^{321213134402004} is an apocalyptic number.

It is an amenable number.

321213134402004 is an abundant number, since it is smaller than the sum of its proper divisors (485945932554476).

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

321213134402004 is a wasteful number, since it uses less digits than its factorization.

321213134402004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20698600 (or 20698598 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 321213134402004 its reverse (400204431312123), we get a palindrome (721417565714127).

The spelling of 321213134402004 in words is "three hundred twenty-one trillion, two hundred thirteen billion, one hundred thirty-four million, four hundred two thousand, four".