204012444321 has 48 divisors (see below), whose sum is σ = 349448320000. Its totient is φ = 112233185280.

The previous prime is 204012444319. The next prime is 204012444343. The reversal of 204012444321 is 123444210402.

204012444321 is a `hidden beast` number, since 204 + 0 + 1 + 24 + 4 + 432 + 1 = 666.

It is not a de Polignac number, because 204012444321 - 2¹ = 204012444319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204012444721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106305 + ... + 647553.

Almost surely, 2^204012444321 is an apocalyptic number.

204012444321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

204012444321 is a deficient number, since it is larger than the sum of its proper divisors (145435875679).

204012444321 is a wasteful number, since it uses less digits than its factorization.

204012444321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541486 (or 541483 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 204012444321 its reverse (123444210402), we get a palindrome (327456654723).

The spelling of 204012444321 in words is "two hundred four billion, twelve million, four hundred forty-four thousand, three hundred twenty-one".