110111099999 has 4 divisors (see below), whose sum is σ = 110111817864. Its totient is φ = 110110382136.

The previous prime is 110111099983. The next prime is 110111100041. The reversal of 110111099999 is 999990111011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 999990111011 = 43 ⋅23255583977.

It is a cyclic number.

It is not a de Polignac number, because 110111099999 - 2⁴ = 110111099983 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 (110111099929) 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, 25772 + ... + 469985.

It is an arithmetic number, because the mean of its divisors is an integer number (27527954466).

Almost surely, 2^110111099999 is an apocalyptic number.

110111099999 is a deficient number, since it is larger than the sum of its proper divisors (717865).

110111099999 is an equidigital number, since it uses as much as digits as its factorization.

110111099999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717864.

The product of its (nonzero) digits is 59049, while the sum is 50.

The spelling of 110111099999 in words is "one hundred ten billion, one hundred eleven million, ninety-nine thousand, nine hundred ninety-nine".