111111100010009 has 4 divisors (see below), whose sum is σ = 121212109101840. Its totient is φ = 101010090918180.

The previous prime is 111111100010003. The next prime is 111111100010017. The reversal of 111111100010009 is 900010001111111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111111100010009 - 2⁸ = 111111100009753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111111100010003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050504545899 + ... + 5050504545920.

It is an arithmetic number, because the mean of its divisors is an integer number (30303027275460).

Almost surely, 2^{111111100010009} is an apocalyptic number.

It is an amenable number.

111111100010009 is a deficient number, since it is larger than the sum of its proper divisors (10101009091831).

111111100010009 is a wasteful number, since it uses less digits than its factorization.

111111100010009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101009091830.

The product of its (nonzero) digits is 9, while the sum is 17.

The spelling of 111111100010009 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred million, ten thousand, nine".