111011200102091 has 2 divisors, whose sum is σ = 111011200102092. Its totient is φ = 111011200102090.

The previous prime is 111011200102087. The next prime is 111011200102151. The reversal of 111011200102091 is 190201002110111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111011200102091 - 2² = 111011200102087 is a prime.

It is not a weakly prime, because it can be changed into another prime (111011200102021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505600051045 + 55505600051046.

It is an arithmetic number, because the mean of its divisors is an integer number (55505600051046).

Almost surely, 2^{111011200102091} is an apocalyptic number.

111011200102091 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011200102091 is an equidigital number, since it uses as much as digits as its factorization.

111011200102091 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 111011200102091 in words is "one hundred eleven trillion, eleven billion, two hundred million, one hundred two thousand, ninety-one".