211120112119991 has 2 divisors, whose sum is σ = 211120112119992. Its totient is φ = 211120112119990.

The previous prime is 211120112119963. The next prime is 211120112120017. The reversal of 211120112119991 is 199911211021112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211120112119991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211120112119591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560056059995 + 105560056059996.

It is an arithmetic number, because the mean of its divisors is an integer number (105560056059996).

Almost surely, 2^{211120112119991} is an apocalyptic number.

211120112119991 is a deficient number, since it is larger than the sum of its proper divisors (1).

211120112119991 is an equidigital number, since it uses as much as digits as its factorization.

211120112119991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 41.

It can be divided in two parts, 2111201121 and 19991, that added together give a palindrome (2111221112).

The spelling of 211120112119991 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred twelve million, one hundred nineteen thousand, nine hundred ninety-one".