204711010811 has 2 divisors, whose sum is σ = 204711010812. Its totient is φ = 204711010810.

The previous prime is 204711010789. The next prime is 204711010837. The reversal of 204711010811 is 118010117402.

It is an a-pointer prime, because the next prime (204711010837) can be obtained adding 204711010811 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204711010811 - 2³⁰ = 203637268987 is a prime.

It is a super-2 number, since 2×204711010811² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (204711010841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102355505405 + 102355505406.

It is an arithmetic number, because the mean of its divisors is an integer number (102355505406).

Almost surely, 2^204711010811 is an apocalyptic number.

204711010811 is a deficient number, since it is larger than the sum of its proper divisors (1).

204711010811 is an equidigital number, since it uses as much as digits as its factorization.

204711010811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

The spelling of 204711010811 in words is "two hundred four billion, seven hundred eleven million, ten thousand, eight hundred eleven".