204112001 has 4 divisors (see below), whose sum is σ = 204156672. Its totient is φ = 204067332.

The previous prime is 204111989. The next prime is 204112021. The reversal of 204112001 is 100211402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204112001 - 2²⁶ = 137003137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204112021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14585 + ... + 24918.

It is an arithmetic number, because the mean of its divisors is an integer number (51039168).

Almost surely, 2^204112001 is an apocalyptic number.

It is an amenable number.

204112001 is a deficient number, since it is larger than the sum of its proper divisors (44671).

204112001 is an equidigital number, since it uses as much as digits as its factorization.

204112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44670.

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

The square root of 204112001 is about 14286.7771383192. Note that the first 3 decimals coincide. The cubic root of 204112001 is about 588.7842445931.

Adding to 204112001 its reverse (100211402), we get a palindrome (304323403).

The spelling of 204112001 in words is "two hundred four million, one hundred twelve thousand, one".