111101101101091 has 8 divisors (see below), whose sum is σ = 112222390961664. Its totient is φ = 109980228475200.

The previous prime is 111101101101017. The next prime is 111101101101149. The reversal of 111101101101091 is 190101101101111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111101101101091 - 2³⁷ = 110963662147619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111101101101691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103773411 + ... + 104838556.

It is an arithmetic number, because the mean of its divisors is an integer number (14027798870208).

Almost surely, 2^{111101101101091} is an apocalyptic number.

111101101101091 is a deficient number, since it is larger than the sum of its proper divisors (1121289860573).

111101101101091 is a wasteful number, since it uses less digits than its factorization.

111101101101091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208617341.

The product of its (nonzero) digits is 9, while the sum is 19.

The spelling of 111101101101091 in words is "one hundred eleven trillion, one hundred one billion, one hundred one million, one hundred one thousand, ninety-one".