111000000099999 has 16 divisors (see below), whose sum is σ = 155790121870080. Its totient is φ = 70104971600640.

The previous prime is 111000000099983. The next prime is 111000000100019. The reversal of 111000000099999 is 999990000000111.

It is not a de Polignac number, because 111000000099999 - 2⁴ = 111000000099983 is a prime.

111000000099999 is a modest number, since divided by 99999 gives 11100 as remainder.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000000059999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10209199 + ... + 18061775.

It is an arithmetic number, because the mean of its divisors is an integer number (9736882616880).

Almost surely, 2^{111000000099999} is an apocalyptic number.

111000000099999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

111000000099999 is a deficient number, since it is larger than the sum of its proper divisors (44790121770081).

111000000099999 is a wasteful number, since it uses less digits than its factorization.

111000000099999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8100590.

The product of its (nonzero) digits is 59049, while the sum is 48.

It can be divided in two parts, 1110000000999 and 99, that multiplied together give a palindrome (109890000098901).

The spelling of 111000000099999 in words is "one hundred eleven trillion, ninety-nine thousand, nine hundred ninety-nine".