204230400333021 has 16 divisors (see below), whose sum is σ = 302569402838400. Its totient is φ = 136150969166784.

The previous prime is 204230400332999. The next prime is 204230400333079. The reversal of 204230400333021 is 120333004032402.

204230400333021 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 304 + 0 + 0 + 3 + 330 + 21 = 666.

It is not a de Polignac number, because 204230400333021 - 2⁵ = 204230400332989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204230400333121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71661276 + ... + 74456693.

It is an arithmetic number, because the mean of its divisors is an integer number (18910587677400).

Almost surely, 2^{204230400333021} is an apocalyptic number.

It is an amenable number.

204230400333021 is a deficient number, since it is larger than the sum of its proper divisors (98339002505379).

204230400333021 is a wasteful number, since it uses less digits than its factorization.

204230400333021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146169745 (or 146169739 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 204230400333021 its reverse (120333004032402), we get a palindrome (324563404365423).

The spelling of 204230400333021 in words is "two hundred four trillion, two hundred thirty billion, four hundred million, three hundred thirty-three thousand, twenty-one".