204411232121 has 8 divisors (see below), whose sum is σ = 204596620800. Its totient is φ = 204225905520.

The previous prime is 204411232111. The next prime is 204411232177. The reversal of 204411232121 is 121232114402.

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 204411232121 - 2¹⁸ = 204410969977 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 (204411232111) 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, 8675126 + ... + 8698656.

It is an arithmetic number, because the mean of its divisors is an integer number (25574577600).

Almost surely, 2^204411232121 is an apocalyptic number.

It is an amenable number.

204411232121 is a deficient number, since it is larger than the sum of its proper divisors (185388679).

204411232121 is a wasteful number, since it uses less digits than its factorization.

204411232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31039.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 204411232121 its reverse (121232114402), we get a palindrome (325643346523).

The spelling of 204411232121 in words is "two hundred four billion, four hundred eleven million, two hundred thirty-two thousand, one hundred twenty-one".