204304111 has 4 divisors (see below), whose sum is σ = 222877224. Its totient is φ = 185731000.

The previous prime is 204304103. The next prime is 204304117. The reversal of 204304111 is 111403402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204304111 - 2³ = 204304103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204304117) 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, 9286540 + ... + 9286561.

It is an arithmetic number, because the mean of its divisors is an integer number (55719306).

Almost surely, 2^204304111 is an apocalyptic number.

204304111 is a deficient number, since it is larger than the sum of its proper divisors (18573113).

204304111 is a wasteful number, since it uses less digits than its factorization.

204304111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18573112.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 204304111 is about 14293.4989068457. The cubic root of 204304111 is about 588.9689077070.

Adding to 204304111 its reverse (111403402), we get a palindrome (315707513).

The spelling of 204304111 in words is "two hundred four million, three hundred four thousand, one hundred eleven".