321012004 has 12 divisors (see below), whose sum is σ = 562060800. Its totient is φ = 160423208.

The previous prime is 321011987. The next prime is 321012017. The reversal of 321012004 is 400210123.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11524 + ... + 27835.

It is an arithmetic number, because the mean of its divisors is an integer number (46838400).

Almost surely, 2^321012004 is an apocalyptic number.

It is an amenable number.

321012004 is a deficient number, since it is larger than the sum of its proper divisors (241048796).

321012004 is a wasteful number, since it uses less digits than its factorization.

321012004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41402 (or 41400 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 321012004 is about 17916.8078630095. The cubic root of 321012004 is about 684.7106626086.

Adding to 321012004 its reverse (400210123), we get a palindrome (721222127).

It can be divided in two parts, 32 and 1012004, that added together give a square (1012036 = 1006²).

The spelling of 321012004 in words is "three hundred twenty-one million, twelve thousand, four".