11011011111109 has 2 divisors, whose sum is σ = 11011011111110. Its totient is φ = 11011011111108.

The previous prime is 11011011111043. The next prime is 11011011111119. The reversal of 11011011111109 is 90111111011011.

It is a happy number.

11011011111109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10328863961025 + 682147150084 = 3213855^2 + 825922^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011011111109 - 2³⁵ = 10976651372741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011011111119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505505555554 + 5505505555555.

It is an arithmetic number, because the mean of its divisors is an integer number (5505505555555).

Almost surely, 2^{11011011111109} is an apocalyptic number.

It is an amenable number.

11011011111109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011011111109 is an equidigital number, since it uses as much as digits as its factorization.

11011011111109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 19.

The spelling of 11011011111109 in words is "eleven trillion, eleven billion, eleven million, one hundred eleven thousand, one hundred nine".