99109111 has 4 divisors (see below), whose sum is σ = 104325400. Its totient is φ = 93892824.

The previous prime is 99109103. The next prime is 99109121. The reversal of 99109111 is 11190199.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11190199 = 17 ⋅658247.

It is a cyclic number.

It is not a de Polignac number, because 99109111 - 2³ = 99109103 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 (99109121) 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, 2608116 + ... + 2608153.

It is an arithmetic number, because the mean of its divisors is an integer number (26081350).

Almost surely, 2^99109111 is an apocalyptic number.

99109111 is a deficient number, since it is larger than the sum of its proper divisors (5216289).

99109111 is a wasteful number, since it uses less digits than its factorization.

99109111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5216288.

The product of its (nonzero) digits is 729, while the sum is 31.

The square root of 99109111 is about 9955.3558951953. The cubic root of 99109111 is about 462.7763895571.

The spelling of 99109111 in words is "ninety-nine million, one hundred nine thousand, one hundred eleven".