11111111110109 has 16 divisors (see below), whose sum is σ = 11152328007744. Its totient is φ = 11069970912000.

The previous prime is 11111111110097. The next prime is 11111111110133. The reversal of 11111111110109 is 90101111111111.

11111111110109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11111111110109 - 2¹⁶ = 11111111044573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111111170109) 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, 1359818594 + ... + 1359826764.

It is an arithmetic number, because the mean of its divisors is an integer number (697020500484).

Almost surely, 2^{11111111110109} is an apocalyptic number.

It is an amenable number.

11111111110109 is a deficient number, since it is larger than the sum of its proper divisors (41216897635).

11111111110109 is a wasteful number, since it uses less digits than its factorization.

11111111110109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12268.

The product of its (nonzero) digits is 9, while the sum is 20.

The spelling of 11111111110109 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, one hundred ten thousand, one hundred nine".