1110111911 has 2 divisors, whose sum is σ = 1110111912. Its totient is φ = 1110111910.

The previous prime is 1110111889. The next prime is 1110111913. The reversal of 1110111911 is 1191110111.

It is a strong prime.

It is an emirp because it is prime and its reverse (1191110111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1110111911 - 2¹⁰ = 1110110887 is a prime.

Together with 1110111913, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1110111911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110111913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555055955 + 555055956.

It is an arithmetic number, because the mean of its divisors is an integer number (555055956).

Almost surely, 2^1110111911 is an apocalyptic number.

1110111911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110111911 is an equidigital number, since it uses as much as digits as its factorization.

1110111911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 17.

The square root of 1110111911 is about 33318.3419605478. The cubic root of 1110111911 is about 1035.4336008303.

The spelling of 1110111911 in words is "one billion, one hundred ten million, one hundred eleven thousand, nine hundred eleven".