111489076091 has 2 divisors, whose sum is σ = 111489076092. Its totient is φ = 111489076090.

The previous prime is 111489076081. The next prime is 111489076093. The reversal of 111489076091 is 190670984111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111489076091 - 2¹⁴ = 111489059707 is a prime.

It is a Sophie Germain prime.

Together with 111489076093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111489076093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55744538045 + 55744538046.

It is an arithmetic number, because the mean of its divisors is an integer number (55744538046).

Almost surely, 2^111489076091 is an apocalyptic number.

111489076091 is a deficient number, since it is larger than the sum of its proper divisors (1).

111489076091 is an equidigital number, since it uses as much as digits as its factorization.

111489076091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 47.

The spelling of 111489076091 in words is "one hundred eleven billion, four hundred eighty-nine million, seventy-six thousand, ninety-one".