111112011187 has 2 divisors, whose sum is σ = 111112011188. Its totient is φ = 111112011186.

The previous prime is 111112011149. The next prime is 111112011221. The reversal of 111112011187 is 781110211111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111112011187 is a prime.

It is not a weakly prime, because it can be changed into another prime (111112011287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556005593 + 55556005594.

It is an arithmetic number, because the mean of its divisors is an integer number (55556005594).

Almost surely, 2^111112011187 is an apocalyptic number.

111112011187 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112011187 is an equidigital number, since it uses as much as digits as its factorization.

111112011187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 25.

Adding to 111112011187 its reverse (781110211111), we get a palindrome (892222222298).

The spelling of 111112011187 in words is "one hundred eleven billion, one hundred twelve million, eleven thousand, one hundred eighty-seven".