204121040330001 has 24 divisors (see below), whose sum is σ = 280831915822080. Its totient is φ = 131869442922336.

The previous prime is 204121040329991. The next prime is 204121040330003. The reversal of 204121040330001 is 100033040121402.

It is not a de Polignac number, because 204121040330001 - 2¹⁵ = 204121040297233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204121040330001.

It is not an unprimeable number, because it can be changed into a prime (204121040330003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144171346 + ... + 145580283.

It is an arithmetic number, because the mean of its divisors is an integer number (11701329825920).

Almost surely, 2^{204121040330001} is an apocalyptic number.

It is an amenable number.

204121040330001 is a deficient number, since it is larger than the sum of its proper divisors (76710875492079).

204121040330001 is a wasteful number, since it uses less digits than its factorization.

204121040330001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289751845 (or 289751802 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 204121040330001 its reverse (100033040121402), we get a palindrome (304154080451403).

The spelling of 204121040330001 in words is "two hundred four trillion, one hundred twenty-one billion, forty million, three hundred thirty thousand, one".