110111100091 has 2 divisors, whose sum is σ = 110111100092. Its totient is φ = 110111100090.

The previous prime is 110111100079. The next prime is 110111100097. The reversal of 110111100091 is 190001111011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 110111100091 - 2¹³ = 110111091899 is a prime.

It is not a weakly prime, because it can be changed into another prime (110111100097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55055550045 + 55055550046.

It is an arithmetic number, because the mean of its divisors is an integer number (55055550046).

Almost surely, 2^110111100091 is an apocalyptic number.

110111100091 is a deficient number, since it is larger than the sum of its proper divisors (1).

110111100091 is an equidigital number, since it uses as much as digits as its factorization.

110111100091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 110111100091 in words is "one hundred ten billion, one hundred eleven million, one hundred thousand, ninety-one".