11101120111 has 2 divisors, whose sum is σ = 11101120112. Its totient is φ = 11101120110.

The previous prime is 11101120109. The next prime is 11101120171. The reversal of 11101120111 is 11102110111.

It is a weak prime.

It is an emirp because it is prime and its reverse (11102110111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11101120111 - 2¹ = 11101120109 is a prime.

Together with 11101120109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11101120171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550560055 + 5550560056.

It is an arithmetic number, because the mean of its divisors is an integer number (5550560056).

Almost surely, 2^11101120111 is an apocalyptic number.

11101120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101120111 is an equidigital number, since it uses as much as digits as its factorization.

11101120111 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 11101120111 its reverse (11102110111), we get a palindrome (22203230222).

The spelling of 11101120111 in words is "eleven billion, one hundred one million, one hundred twenty thousand, one hundred eleven".