2100120111959 has 2 divisors, whose sum is σ = 2100120111960. Its totient is φ = 2100120111958.

The previous prime is 2100120111937. The next prime is 2100120111967. The reversal of 2100120111959 is 9591110210012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100120111959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100120111359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050060055979 + 1050060055980.

It is an arithmetic number, because the mean of its divisors is an integer number (1050060055980).

Almost surely, 2^{2100120111959} is an apocalyptic number.

2100120111959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100120111959 is an equidigital number, since it uses as much as digits as its factorization.

2100120111959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 32.

The spelling of 2100120111959 in words is "two trillion, one hundred billion, one hundred twenty million, one hundred eleven thousand, nine hundred fifty-nine".