2102118659 has 2 divisors, whose sum is σ = 2102118660. Its totient is φ = 2102118658.

The previous prime is 2102118589. The next prime is 2102118661. The reversal of 2102118659 is 9568112012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102118659 - 2¹² = 2102114563 is a prime.

It is a Sophie Germain prime.

Together with 2102118661, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2102118559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051059329 + 1051059330.

It is an arithmetic number, because the mean of its divisors is an integer number (1051059330).

Almost surely, 2^2102118659 is an apocalyptic number.

2102118659 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102118659 is an equidigital number, since it uses as much as digits as its factorization.

2102118659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 2102118659 is about 45848.8675868881. The cubic root of 2102118659 is about 1281.0096727142.

The spelling of 2102118659 in words is "two billion, one hundred two million, one hundred eighteen thousand, six hundred fifty-nine".