2100120102079 has 2 divisors, whose sum is σ = 2100120102080. Its totient is φ = 2100120102078.

The previous prime is 2100120102077. The next prime is 2100120102131. The reversal of 2100120102079 is 9702010210012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100120102079 - 2¹ = 2100120102077 is a prime.

Together with 2100120102077, 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 (2100120102077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050060051039 + 1050060051040.

It is an arithmetic number, because the mean of its divisors is an integer number (1050060051040).

Almost surely, 2^{2100120102079} is an apocalyptic number.

2100120102079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100120102079 is an equidigital number, since it uses as much as digits as its factorization.

2100120102079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 2100120102079 in words is "two trillion, one hundred billion, one hundred twenty million, one hundred two thousand, seventy-nine".