102685108811 has 2 divisors, whose sum is σ = 102685108812. Its totient is φ = 102685108810.

The previous prime is 102685108787. The next prime is 102685108817. The reversal of 102685108811 is 118801586201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102685108811 - 2¹⁰ = 102685107787 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (102685108817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51342554405 + 51342554406.

It is an arithmetic number, because the mean of its divisors is an integer number (51342554406).

Almost surely, 2^102685108811 is an apocalyptic number.

102685108811 is a deficient number, since it is larger than the sum of its proper divisors (1).

102685108811 is an equidigital number, since it uses as much as digits as its factorization.

102685108811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 41.

The spelling of 102685108811 in words is "one hundred two billion, six hundred eighty-five million, one hundred eight thousand, eight hundred eleven".