111111111000009 has 12 divisors (see below), whose sum is σ = 160499570156016. Its totient is φ = 74071423312632.

The previous prime is 111111110999891. The next prime is 111111111000023. The reversal of 111111111000009 is 900000111111111.

It is not a de Polignac number, because 111111111000009 - 2¹⁷ = 111111110868937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111111110999955 and 111111111000000.

It is not an unprimeable number, because it can be changed into a prime (111111111000059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220625119 + ... + 221128164.

It is an arithmetic number, because the mean of its divisors is an integer number (13374964179668).

Almost surely, 2^{111111111000009} is an apocalyptic number.

It is an amenable number.

111111111000009 is a deficient number, since it is larger than the sum of its proper divisors (49388459156007).

111111111000009 is a wasteful number, since it uses less digits than its factorization.

111111111000009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441781236 (or 441781233 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 18.

The spelling of 111111111000009 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred eleven million, nine", and thus it is an aban number.