204241203344421 has 12 divisors (see below), whose sum is σ = 295015384738048. Its totient is φ = 136160657657064.

The previous prime is 204241203344389. The next prime is 204241203344587. The reversal of 204241203344421 is 124443302142402.

204241203344421 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 4 + 1 + 203 + 3 + 4 + 442 + 1 = 666.

It is not a de Polignac number, because 204241203344421 - 2⁵ = 204241203344389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204241203344621) 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, 2720395 + ... + 20393208.

Almost surely, 2^{204241203344421} is an apocalyptic number.

It is an amenable number.

204241203344421 is a deficient number, since it is larger than the sum of its proper divisors (90774181393627).

204241203344421 is a wasteful number, since it uses less digits than its factorization.

204241203344421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24095432 (or 24095429 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 204241203344421 its reverse (124443302142402), we get a palindrome (328684505486823).

The spelling of 204241203344421 in words is "two hundred four trillion, two hundred forty-one billion, two hundred three million, three hundred forty-four thousand, four hundred twenty-one".