204132321 has 12 divisors (see below), whose sum is σ = 295074000. Its totient is φ = 135988440.

The previous prime is 204132289. The next prime is 204132323. The reversal of 204132321 is 123231402.

204132321 is a `hidden beast` number, since 20 + 413 + 232 + 1 = 666.

It is not a de Polignac number, because 204132321 - 2⁵ = 204132289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204132294 and 204132303.

It is not an unprimeable number, because it can be changed into a prime (204132323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5926 + ... + 21056.

It is an arithmetic number, because the mean of its divisors is an integer number (24589500).

Almost surely, 2^204132321 is an apocalyptic number.

It is an amenable number.

204132321 is a deficient number, since it is larger than the sum of its proper divisors (90941679).

204132321 is a wasteful number, since it uses less digits than its factorization.

204132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16636 (or 16633 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 204132321 is about 14287.4882677117. The cubic root of 204132321 is about 588.8037823939.

Adding to 204132321 its reverse (123231402), we get a palindrome (327363723).

The spelling of 204132321 in words is "two hundred four million, one hundred thirty-two thousand, three hundred twenty-one".