211120011191 has 2 divisors, whose sum is σ = 211120011192. Its totient is φ = 211120011190.

The previous prime is 211120011187. The next prime is 211120011227. The reversal of 211120011191 is 191110021112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211120011191 - 2² = 211120011187 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211120011101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560005595 + 105560005596.

It is an arithmetic number, because the mean of its divisors is an integer number (105560005596).

Almost surely, 2^211120011191 is an apocalyptic number.

211120011191 is a deficient number, since it is larger than the sum of its proper divisors (1).

211120011191 is an equidigital number, since it uses as much as digits as its factorization.

211120011191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 211120011191 in words is "two hundred eleven billion, one hundred twenty million, eleven thousand, one hundred ninety-one".