321321441304 has 64 divisors (see below), whose sum is σ = 649125550080. Its totient is φ = 148678464000.

The previous prime is 321321441289. The next prime is 321321441307. The reversal of 321321441304 is 403144123123.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321321441307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39758544 + ... + 39766624.

It is an arithmetic number, because the mean of its divisors is an integer number (10142586720).

Almost surely, 2^321321441304 is an apocalyptic number.

It is an amenable number.

321321441304 is an abundant number, since it is smaller than the sum of its proper divisors (327804108776).

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

321321441304 is a wasteful number, since it uses less digits than its factorization.

321321441304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15112 (or 15108 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 321321441304 its reverse (403144123123), we get a palindrome (724465564427).

The spelling of 321321441304 in words is "three hundred twenty-one billion, three hundred twenty-one million, four hundred forty-one thousand, three hundred four".