204424431144223 has 16 divisors (see below), whose sum is σ = 213821231348736. Its totient is φ = 195070553186080.

The previous prime is 204424431144221. The next prime is 204424431144247. The reversal of 204424431144223 is 322441134424402.

It is a cyclic number.

It is not a de Polignac number, because 204424431144223 - 2¹ = 204424431144221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204424431144221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11223528 + ... + 23126098.

It is an arithmetic number, because the mean of its divisors is an integer number (13363826959296).

Almost surely, 2^{204424431144223} is an apocalyptic number.

204424431144223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

204424431144223 is a deficient number, since it is larger than the sum of its proper divisors (9396800204513).

204424431144223 is a wasteful number, since it uses less digits than its factorization.

204424431144223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11904374.

The product of its (nonzero) digits is 589824, while the sum is 40.

Adding to 204424431144223 its reverse (322441134424402), we get a palindrome (526865565568625).

The spelling of 204424431144223 in words is "two hundred four trillion, four hundred twenty-four billion, four hundred thirty-one million, one hundred forty-four thousand, two hundred twenty-three".