1111191118111 has 2 divisors, whose sum is σ = 1111191118112. Its totient is φ = 1111191118110.

The previous prime is 1111191118099. The next prime is 1111191118183. The reversal of 1111191118111 is 1118111911111.

It is a m-pointer prime, because the next prime (1111191118183) can be obtained adding 1111191118111 to its product of digits (72).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111191118111 - 2²¹ = 1111189020959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111191118111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111191418111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555595559055 + 555595559056.

It is an arithmetic number, because the mean of its divisors is an integer number (555595559056).

Almost surely, 2^{1111191118111} is an apocalyptic number.

1111191118111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111191118111 is an equidigital number, since it uses as much as digits as its factorization.

1111191118111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 28.

The spelling of 1111191118111 in words is "one trillion, one hundred eleven billion, one hundred ninety-one million, one hundred eighteen thousand, one hundred eleven".