99019111 has 4 divisors (see below), whose sum is σ = 99047232. Its totient is φ = 98990992.

The previous prime is 99019097. The next prime is 99019121. The reversal of 99019111 is 11191099.

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

It is a cyclic number.

It is not a de Polignac number, because 99019111 - 2¹¹ = 99017063 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 (99019121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7870 + ... + 16123.

It is an arithmetic number, because the mean of its divisors is an integer number (24761808).

Almost surely, 2^99019111 is an apocalyptic number.

99019111 is a deficient number, since it is larger than the sum of its proper divisors (28121).

99019111 is a wasteful number, since it uses less digits than its factorization.

99019111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28120.

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

The square root of 99019111 is about 9950.8346886078. The cubic root of 99019111 is about 462.6362662517.

The spelling of 99019111 in words is "ninety-nine million, nineteen thousand, one hundred eleven".