11001111101611 has 2 divisors, whose sum is σ = 11001111101612. Its totient is φ = 11001111101610.

The previous prime is 11001111101579. The next prime is 11001111101689. The reversal of 11001111101611 is 11610111110011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11001111101611 - 2⁵ = 11001111101579 is a prime.

It is not a weakly prime, because it can be changed into another prime (11001111131611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500555550805 + 5500555550806.

It is an arithmetic number, because the mean of its divisors is an integer number (5500555550806).

Almost surely, 2^{11001111101611} is an apocalyptic number.

11001111101611 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001111101611 is an equidigital number, since it uses as much as digits as its factorization.

11001111101611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 16.

Adding to 11001111101611 its reverse (11610111110011), we get a palindrome (22611222211622).

The spelling of 11001111101611 in words is "eleven trillion, one billion, one hundred eleven million, one hundred one thousand, six hundred eleven".