321104320212 has 48 divisors (see below), whose sum is σ = 808674753600. Its totient is φ = 98581260288.

The previous prime is 321104320169. The next prime is 321104320219. The reversal of 321104320212 is 212023401123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321104320219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2222118 + ... + 2362205.

It is an arithmetic number, because the mean of its divisors is an integer number (16847390700).

Almost surely, 2^321104320212 is an apocalyptic number.

It is an amenable number.

321104320212 is an abundant number, since it is smaller than the sum of its proper divisors (487570433388).

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

321104320212 is a wasteful number, since it uses less digits than its factorization.

321104320212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584792 (or 4584790 counting only the distinct ones).

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

Adding to 321104320212 its reverse (212023401123), we get a palindrome (533127721335).

The spelling of 321104320212 in words is "three hundred twenty-one billion, one hundred four million, three hundred twenty thousand, two hundred twelve".