11111120011 has 2 divisors, whose sum is σ = 11111120012. Its totient is φ = 11111120010.

The previous prime is 11111119997. The next prime is 11111120047. The reversal of 11111120011 is 11002111111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11111120011 - 2¹³ = 11111111819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11111120011.

It is not a weakly prime, because it can be changed into another prime (11111120081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555560005 + 5555560006.

It is an arithmetic number, because the mean of its divisors is an integer number (5555560006).

Almost surely, 2^11111120011 is an apocalyptic number.

11111120011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111120011 is an equidigital number, since it uses as much as digits as its factorization.

11111120011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 11111120011 its reverse (11002111111), we get a palindrome (22113231122).

The spelling of 11111120011 in words is "eleven billion, one hundred eleven million, one hundred twenty thousand, eleven".