105110110991 has 2 divisors, whose sum is σ = 105110110992. Its totient is φ = 105110110990.

The previous prime is 105110110967. The next prime is 105110110993. The reversal of 105110110991 is 199011011501.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (199011011501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105110110991 - 2³⁴ = 87930241807 is a prime.

It is a super-2 number, since 2×105110110991² (a number of 23 digits) contains 22 as substring.

Together with 105110110993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105110110993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52555055495 + 52555055496.

It is an arithmetic number, because the mean of its divisors is an integer number (52555055496).

Almost surely, 2^105110110991 is an apocalyptic number.

105110110991 is a deficient number, since it is larger than the sum of its proper divisors (1).

105110110991 is an equidigital number, since it uses as much as digits as its factorization.

105110110991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 29.

The spelling of 105110110991 in words is "one hundred five billion, one hundred ten million, one hundred ten thousand, nine hundred ninety-one".