321201004 has 24 divisors (see below), whose sum is σ = 592628400. Its totient is φ = 151905600.

The previous prime is 321200987. The next prime is 321201007. The reversal of 321201004 is 400102123.

It is not an unprimeable number, because it can be changed into a prime (321201007) by changing a digit.

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, 50262 + ... + 56290.

It is an arithmetic number, because the mean of its divisors is an integer number (24692850).

Almost surely, 2^321201004 is an apocalyptic number.

It is an amenable number.

321201004 is a deficient number, since it is larger than the sum of its proper divisors (271427396).

321201004 is a wasteful number, since it uses less digits than its factorization.

321201004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6753 (or 6751 counting only the distinct ones).

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

The square root of 321201004 is about 17922.0814639372. The cubic root of 321201004 is about 684.8450136864.

Adding to 321201004 its reverse (400102123), we get a palindrome (721303127).

It can be divided in two parts, 32120 and 1004, that added together give a square (33124 = 182²).

The spelling of 321201004 in words is "three hundred twenty-one million, two hundred one thousand, four".