204340111 has 2 divisors, whose sum is σ = 204340112. Its totient is φ = 204340110.

The previous prime is 204340093. The next prime is 204340133. The reversal of 204340111 is 111043402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204340111 - 2⁹ = 204339599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204340711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102170055 + 102170056.

It is an arithmetic number, because the mean of its divisors is an integer number (102170056).

Almost surely, 2^204340111 is an apocalyptic number.

204340111 is a deficient number, since it is larger than the sum of its proper divisors (1).

204340111 is an equidigital number, since it uses as much as digits as its factorization.

204340111 is an evil number, because the sum of its binary digits is even.

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

The square root of 204340111 is about 14294.7581651457. The cubic root of 204340111 is about 589.0034993350.

Adding to 204340111 its reverse (111043402), we get a palindrome (315383513).

The spelling of 204340111 in words is "two hundred four million, three hundred forty thousand, one hundred eleven".