321121004 has 6 divisors (see below), whose sum is σ = 561961764. Its totient is φ = 160560500.

The previous prime is 321120991. The next prime is 321121067. The reversal of 321121004 is 400121123.

It is a self number, because there is not a number n which added to its sum of digits gives 321121004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40140122 + ... + 40140129.

It is an arithmetic number, because the mean of its divisors is an integer number (93660294).

Almost surely, 2^321121004 is an apocalyptic number.

It is an amenable number.

321121004 is a deficient number, since it is larger than the sum of its proper divisors (240840760).

321121004 is a wasteful number, since it uses less digits than its factorization.

321121004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80280255 (or 80280253 counting only the distinct ones).

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

The square root of 321121004 is about 17919.8494413318. The cubic root of 321121004 is about 684.7881519399.

Adding to 321121004 its reverse (400121123), we get a palindrome (721242127).

The spelling of 321121004 in words is "three hundred twenty-one million, one hundred twenty-one thousand, four".