204817304311 has 2 divisors, whose sum is σ = 204817304312. Its totient is φ = 204817304310.

The previous prime is 204817304309. The next prime is 204817304371. The reversal of 204817304311 is 113403718402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204817304311 - 2¹ = 204817304309 is a prime.

Together with 204817304309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204817304371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102408652155 + 102408652156.

It is an arithmetic number, because the mean of its divisors is an integer number (102408652156).

Almost surely, 2^204817304311 is an apocalyptic number.

204817304311 is a deficient number, since it is larger than the sum of its proper divisors (1).

204817304311 is an equidigital number, since it uses as much as digits as its factorization.

204817304311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 204817304311 in words is "two hundred four billion, eight hundred seventeen million, three hundred four thousand, three hundred eleven".