204312111599 has 2 divisors, whose sum is σ = 204312111600. Its totient is φ = 204312111598.

The previous prime is 204312111539. The next prime is 204312111611. The reversal of 204312111599 is 995111213402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204312111599 - 2⁸ = 204312111343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204312111539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102156055799 + 102156055800.

It is an arithmetic number, because the mean of its divisors is an integer number (102156055800).

Almost surely, 2^204312111599 is an apocalyptic number.

204312111599 is a deficient number, since it is larger than the sum of its proper divisors (1).

204312111599 is an equidigital number, since it uses as much as digits as its factorization.

204312111599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 204312111599 in words is "two hundred four billion, three hundred twelve million, one hundred eleven thousand, five hundred ninety-nine".