191112107 has 2 divisors, whose sum is σ = 191112108. Its totient is φ = 191112106.

The previous prime is 191112023. The next prime is 191112109. The reversal of 191112107 is 701211191.

It is a happy number.

191112107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 191112107 - 2¹⁸ = 190849963 is a prime.

Together with 191112109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (191112109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95556053 + 95556054.

It is an arithmetic number, because the mean of its divisors is an integer number (95556054).

Almost surely, 2^191112107 is an apocalyptic number.

191112107 is a deficient number, since it is larger than the sum of its proper divisors (1).

191112107 is an equidigital number, since it uses as much as digits as its factorization.

191112107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 23.

The square root of 191112107 is about 13824.3302550250. The cubic root of 191112107 is about 576.0091737142.

Adding to 191112107 its reverse (701211191), we get a palindrome (892323298).

The spelling of 191112107 in words is "one hundred ninety-one million, one hundred twelve thousand, one hundred seven".