11011111121189 has 2 divisors, whose sum is σ = 11011111121190. Its totient is φ = 11011111121188.

The previous prime is 11011111121161. The next prime is 11011111121243. The reversal of 11011111121189 is 98112111111011.

11011111121189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7302182085025 + 3708929036164 = 2702255^2 + 1925858^2 .

It is an emirp because it is prime and its reverse (98112111111011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11011111121189 - 2¹⁶ = 11011111055653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011111123189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505555560594 + 5505555560595.

It is an arithmetic number, because the mean of its divisors is an integer number (5505555560595).

Almost surely, 2^{11011111121189} is an apocalyptic number.

It is an amenable number.

11011111121189 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011111121189 is an equidigital number, since it uses as much as digits as its factorization.

11011111121189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 29.

The spelling of 11011111121189 in words is "eleven trillion, eleven billion, one hundred eleven million, one hundred twenty-one thousand, one hundred eighty-nine".