2102102111191 has 2 divisors, whose sum is σ = 2102102111192. Its totient is φ = 2102102111190.

The previous prime is 2102102111147. The next prime is 2102102111227. The reversal of 2102102111191 is 1911112012012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102102111191 - 2⁷ = 2102102111063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102102511191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051051055595 + 1051051055596.

It is an arithmetic number, because the mean of its divisors is an integer number (1051051055596).

Almost surely, 2^{2102102111191} is an apocalyptic number.

2102102111191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102102111191 is an equidigital number, since it uses as much as digits as its factorization.

2102102111191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 2102102111191 in words is "two trillion, one hundred two billion, one hundred two million, one hundred eleven thousand, one hundred ninety-one".