321213421002 has 32 divisors (see below), whose sum is σ = 646319606400. Its totient is φ = 106424299520.

The previous prime is 321213420961. The next prime is 321213421031. The reversal of 321213421002 is 200124312123.

It is a self number, because there is not a number n which added to its sum of digits gives 321213421002.

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, 414874 + ... + 902522.

It is an arithmetic number, because the mean of its divisors is an integer number (20197487700).

Almost surely, 2^321213421002 is an apocalyptic number.

321213421002 is an abundant number, since it is smaller than the sum of its proper divisors (325106185398).

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

321213421002 is a wasteful number, since it uses less digits than its factorization.

321213421002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488318.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 321213421002 its reverse (200124312123), we get a palindrome (521337733125).

The spelling of 321213421002 in words is "three hundred twenty-one billion, two hundred thirteen million, four hundred twenty-one thousand, two".