204421200323 has 4 divisors (see below), whose sum is σ = 206230237608. Its totient is φ = 202612163040.

The previous prime is 204421200301. The next prime is 204421200337. The reversal of 204421200323 is 323002124402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204421200323 - 2¹² = 204421196227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204421200353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904518473 + ... + 904518698.

It is an arithmetic number, because the mean of its divisors is an integer number (51557559402).

Almost surely, 2^204421200323 is an apocalyptic number.

204421200323 is a deficient number, since it is larger than the sum of its proper divisors (1809037285).

204421200323 is a wasteful number, since it uses less digits than its factorization.

204421200323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809037284.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 204421200323 its reverse (323002124402), we get a palindrome (527423324725).

The spelling of 204421200323 in words is "two hundred four billion, four hundred twenty-one million, two hundred thousand, three hundred twenty-three".