111185983 has 2 divisors, whose sum is σ = 111185984. Its totient is φ = 111185982.

The previous prime is 111185941. The next prime is 111185989. The reversal of 111185983 is 389581111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111185983 - 2⁹ = 111185471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111185989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55592991 + 55592992.

It is an arithmetic number, because the mean of its divisors is an integer number (55592992).

Almost surely, 2^111185983 is an apocalyptic number.

111185983 is a deficient number, since it is larger than the sum of its proper divisors (1).

111185983 is an equidigital number, since it uses as much as digits as its factorization.

111185983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 37.

The square root of 111185983 is about 10544.4764213307. The cubic root of 111185983 is about 480.8578164729.

The spelling of 111185983 in words is "one hundred eleven million, one hundred eighty-five thousand, nine hundred eighty-three".