321013324320402 has 64 divisors (see below), whose sum is σ = 738804141324288. Its totient is φ = 91085996880000.

The previous prime is 321013324320401. The next prime is 321013324320439. The reversal of 321013324320402 is 204023423310123.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 321013324320402.

It is not an unprimeable number, because it can be changed into a prime (321013324320401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16551502 + ... + 30265142.

It is an arithmetic number, because the mean of its divisors is an integer number (11543814708192).

Almost surely, 2^{321013324320402} is an apocalyptic number.

321013324320402 is an abundant number, since it is smaller than the sum of its proper divisors (417790817003886).

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

321013324320402 is a wasteful number, since it uses less digits than its factorization.

321013324320402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13717495.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 321013324320402 its reverse (204023423310123), we get a palindrome (525036747630525).

The spelling of 321013324320402 in words is "three hundred twenty-one trillion, thirteen billion, three hundred twenty-four million, three hundred twenty thousand, four hundred two".