111006891 has 6 divisors (see below), whose sum is σ = 160343300. Its totient is φ = 74004588.

The previous prime is 111006871. The next prime is 111006893. The reversal of 111006891 is 198600111.

It is not a de Polignac number, because 111006891 - 2²³ = 102618283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111006893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6167041 + ... + 6167058.

Almost surely, 2^111006891 is an apocalyptic number.

111006891 is a deficient number, since it is larger than the sum of its proper divisors (49336409).

111006891 is a wasteful number, since it uses less digits than its factorization.

111006891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12334105 (or 12334102 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 27.

The square root of 111006891 is about 10535.9807801647. The cubic root of 111006891 is about 480.5994983377.

The spelling of 111006891 in words is "one hundred eleven million, six thousand, eight hundred ninety-one".