111110099999 has 16 divisors (see below), whose sum is σ = 119207337984.
Its totient is φ = 103304203200.
The previous prime is 111110099929. The next prime is 111110100041. The reversal of 111110099999 is 999990011111.
It is a cyclic number.
It is not a de Polignac number, because 111110099999 - 212 = 111110095903 is a prime.
It is a Duffinian number.
111110099999 is a modest number, since divided by 99999 gives 11111 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 (111110099909) 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, 38162 + ... + 472944.
It is an arithmetic number, because the mean of its divisors is an integer number (7450458624).
Almost surely, 2111110099999 is an apocalyptic number.
111110099999 is a deficient number, since it is larger than the sum of its proper divisors (8097237985).
111110099999 is a wasteful number, since it uses less digits than its factorization.
111110099999 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 435118.
The product of its (nonzero) digits is 59049, while the sum is 50.
It can be divided in two parts, 1111100 and 99999, that multiplied together give a square (111108888900 = 3333302).
The spelling of 111110099999 in words is "one hundred eleven billion, one hundred ten million, ninety-nine thousand, nine hundred ninety-nine".