12110111019911 has 2 divisors, whose sum is σ = 12110111019912. Its totient is φ = 12110111019910.

The previous prime is 12110111019907. The next prime is 12110111019961. The reversal of 12110111019911 is 11991011101121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12110111019911 - 2² = 12110111019907 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12110111019961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055055509955 + 6055055509956.

It is an arithmetic number, because the mean of its divisors is an integer number (6055055509956).

Almost surely, 2^{12110111019911} is an apocalyptic number.

12110111019911 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110111019911 is an equidigital number, since it uses as much as digits as its factorization.

12110111019911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 29.

The spelling of 12110111019911 in words is "twelve trillion, one hundred ten billion, one hundred eleven million, nineteen thousand, nine hundred eleven".