112041991 has 2 divisors, whose sum is σ = 112041992. Its totient is φ = 112041990.

The previous prime is 112041983. The next prime is 112042009. The reversal of 112041991 is 199140211.

It is a weak prime.

It is an emirp because it is prime and its reverse (199140211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112041991 - 2³ = 112041983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112041931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56020995 + 56020996.

It is an arithmetic number, because the mean of its divisors is an integer number (56020996).

Almost surely, 2^112041991 is an apocalyptic number.

112041991 is a deficient number, since it is larger than the sum of its proper divisors (1).

112041991 is an equidigital number, since it uses as much as digits as its factorization.

112041991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 112041991 is about 10584.9889466168. The cubic root of 112041991 is about 482.0886859533.

The spelling of 112041991 in words is "one hundred twelve million, forty-one thousand, nine hundred ninety-one".