11111001109 has 8 divisors (see below), whose sum is σ = 11966672480. Its totient is φ = 10255469616.

The previous prime is 11111001061. The next prime is 11111001149. The reversal of 11111001109 is 90110011111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11111001109 - 2²⁷ = 10976783381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11111001092 and 11111001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111001149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178162 + ... + 232300.

It is an arithmetic number, because the mean of its divisors is an integer number (1495834060).

Almost surely, 2^11111001109 is an apocalyptic number.

It is an amenable number.

11111001109 is a deficient number, since it is larger than the sum of its proper divisors (855671371).

11111001109 is a wasteful number, since it uses less digits than its factorization.

11111001109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69939.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 11111001109 in words is "eleven billion, one hundred eleven million, one thousand, one hundred nine".