204010121 has 8 divisors (see below), whose sum is σ = 234183360. Its totient is φ = 174094128.

The previous prime is 204010097. The next prime is 204010123. The reversal of 204010121 is 121010402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204010121 - 2⁶ = 204010057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204010123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62606 + ... + 65783.

It is an arithmetic number, because the mean of its divisors is an integer number (29272920).

Almost surely, 2^204010121 is an apocalyptic number.

It is an amenable number.

204010121 is a deficient number, since it is larger than the sum of its proper divisors (30173239).

204010121 is a wasteful number, since it uses less digits than its factorization.

204010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128623.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 204010121 is about 14283.2111585595. The cubic root of 204010121 is about 588.6862668136.

Adding to 204010121 its reverse (121010402), we get a palindrome (325020523).

The spelling of 204010121 in words is "two hundred four million, ten thousand, one hundred twenty-one".