111111000009 has 16 divisors (see below), whose sum is σ = 156869602560. Its totient is φ = 69713588480.

The previous prime is 111110999999. The next prime is 111111000041. The reversal of 111111000009 is 900000111111.

It is a cyclic number.

It is not a de Polignac number, because 111111000009 - 2¹² = 111110995913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111111000109) 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, 1742512 + ... + 1805150.

It is an arithmetic number, because the mean of its divisors is an integer number (9804350160).

Almost surely, 2^111111000009 is an apocalyptic number.

It is an amenable number.

111111000009 is a deficient number, since it is larger than the sum of its proper divisors (45758602551).

111111000009 is a wasteful number, since it uses less digits than its factorization.

111111000009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97440.

The product of its (nonzero) digits is 9, while the sum is 15.

The spelling of 111111000009 in words is "one hundred eleven billion, one hundred eleven million, nine", and thus it is an aban number.