111002011091 has 2 divisors, whose sum is σ = 111002011092. Its totient is φ = 111002011090.

The previous prime is 111002011027. The next prime is 111002011163. The reversal of 111002011091 is 190110200111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111002011091 - 2⁶ = 111002011027 is a prime.

It is not a weakly prime, because it can be changed into another prime (111002014091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55501005545 + 55501005546.

It is an arithmetic number, because the mean of its divisors is an integer number (55501005546).

Almost surely, 2^111002011091 is an apocalyptic number.

111002011091 is a deficient number, since it is larger than the sum of its proper divisors (1).

111002011091 is an equidigital number, since it uses as much as digits as its factorization.

111002011091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 17.

The spelling of 111002011091 in words is "one hundred eleven billion, two million, eleven thousand, ninety-one".