99110111 has 4 divisors (see below), whose sum is σ = 99505224. Its totient is φ = 98715000.

The previous prime is 99110101. The next prime is 99110113. The reversal of 99110111 is 11101199.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99110111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99110113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197180 + ... + 197681.

It is an arithmetic number, because the mean of its divisors is an integer number (24876306).

Almost surely, 2^99110111 is an apocalyptic number.

99110111 is a deficient number, since it is larger than the sum of its proper divisors (395113).

99110111 is a wasteful number, since it uses less digits than its factorization.

99110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395112.

The product of its (nonzero) digits is 81, while the sum is 23.

The square root of 99110111 is about 9955.4061192902. The cubic root of 99110111 is about 462.7779460061. Note that the first 3 decimals are identical.

The spelling of 99110111 in words is "ninety-nine million, one hundred ten thousand, one hundred eleven".