111916843 has 2 divisors, whose sum is σ = 111916844. Its totient is φ = 111916842.

The previous prime is 111916801. The next prime is 111916891. The reversal of 111916843 is 348619111.

It is a weak prime.

It is an emirp because it is prime and its reverse (348619111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111916843 - 2¹⁷ = 111785771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111916799 and 111916808.

It is not a weakly prime, because it can be changed into another prime (111916043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55958421 + 55958422.

It is an arithmetic number, because the mean of its divisors is an integer number (55958422).

Almost surely, 2^111916843 is an apocalyptic number.

111916843 is a deficient number, since it is larger than the sum of its proper divisors (1).

111916843 is an equidigital number, since it uses as much as digits as its factorization.

111916843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 34.

The square root of 111916843 is about 10579.0757157703. The cubic root of 111916843 is about 481.9091255595.

The spelling of 111916843 in words is "one hundred eleven million, nine hundred sixteen thousand, eight hundred forty-three".