321200003204 has 24 divisors (see below), whose sum is σ = 564396956928. Its totient is φ = 159945065280.

The previous prime is 321200003147. The next prime is 321200003219. The reversal of 321200003204 is 402300002123.

It is a super-2 number, since 2×321200003204² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798449 + ... + 1131335.

It is an arithmetic number, because the mean of its divisors is an integer number (23516539872).

Almost surely, 2^321200003204 is an apocalyptic number.

It is an amenable number.

321200003204 is a deficient number, since it is larger than the sum of its proper divisors (243196953724).

321200003204 is a wasteful number, since it uses less digits than its factorization.

321200003204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333875 (or 333873 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 321200003204 its reverse (402300002123), we get a palindrome (723500005327).

The spelling of 321200003204 in words is "three hundred twenty-one billion, two hundred million, three thousand, two hundred four".