11111000010911 has 2 divisors, whose sum is σ = 11111000010912. Its totient is φ = 11111000010910.

The previous prime is 11111000010871. The next prime is 11111000010917. The reversal of 11111000010911 is 11901000011111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11111000010911 - 2¹⁰ = 11111000009887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11111000010911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111000010917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555500005455 + 5555500005456.

It is an arithmetic number, because the mean of its divisors is an integer number (5555500005456).

Almost surely, 2^{11111000010911} is an apocalyptic number.

11111000010911 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111000010911 is an equidigital number, since it uses as much as digits as its factorization.

11111000010911 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 17.

The spelling of 11111000010911 in words is "eleven trillion, one hundred eleven billion, ten thousand, nine hundred eleven".