11111011191011 has 2 divisors, whose sum is σ = 11111011191012. Its totient is φ = 11111011191010.

The previous prime is 11111011190989. The next prime is 11111011191029. The reversal of 11111011191011 is 11019111011111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11111011191011 - 2¹⁰ = 11111011189987 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111011191061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555505595505 + 5555505595506.

It is an arithmetic number, because the mean of its divisors is an integer number (5555505595506).

Almost surely, 2^{11111011191011} is an apocalyptic number.

11111011191011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111011191011 is an equidigital number, since it uses as much as digits as its factorization.

11111011191011 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 11111011191011 in words is "eleven trillion, one hundred eleven billion, eleven million, one hundred ninety-one thousand, eleven".