321112004 has 6 divisors (see below), whose sum is σ = 561946014. Its totient is φ = 160556000.

The previous prime is 321111949. The next prime is 321112009. The reversal of 321112004 is 400211123.

It can be written as a sum of positive squares in only one way, i.e., 166358404 + 154753600 = 12898^2 + 12440^2 .

It is a super-2 number, since 2×321112004² = 206225838225792032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321112004.

It is not an unprimeable number, because it can be changed into a prime (321112009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40138997 + ... + 40139004.

It is an arithmetic number, because the mean of its divisors is an integer number (93657669).

Almost surely, 2^321112004 is an apocalyptic number.

It is an amenable number.

321112004 is a deficient number, since it is larger than the sum of its proper divisors (240834010).

321112004 is a wasteful number, since it uses less digits than its factorization.

321112004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80278005 (or 80278003 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 321112004 is about 17919.5983213910. The cubic root of 321112004 is about 684.7817544024.

Adding to 321112004 its reverse (400211123), we get a palindrome (721323127).

The spelling of 321112004 in words is "three hundred twenty-one million, one hundred twelve thousand, four".