204080111 has 2 divisors, whose sum is σ = 204080112. Its totient is φ = 204080110.

The previous prime is 204080059. The next prime is 204080113. The reversal of 204080111 is 111080402.

204080111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204080111 - 2¹⁸ = 203817967 is a prime.

Together with 204080113, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204080111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204080113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102040055 + 102040056.

It is an arithmetic number, because the mean of its divisors is an integer number (102040056).

Almost surely, 2^204080111 is an apocalyptic number.

204080111 is a deficient number, since it is larger than the sum of its proper divisors (1).

204080111 is an equidigital number, since it uses as much as digits as its factorization.

204080111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 204080111 is about 14285.6610277579. The cubic root of 204080111 is about 588.7535795540.

The spelling of 204080111 in words is "two hundred four million, eighty thousand, one hundred eleven".