111231983 has 2 divisors, whose sum is σ = 111231984. Its totient is φ = 111231982.

The previous prime is 111231971. The next prime is 111231997. The reversal of 111231983 is 389132111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111231983 - 2⁶ = 111231919 is a prime.

It is a super-2 number, since 2×111231983² = 24745108084224578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111231283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55615991 + 55615992.

It is an arithmetic number, because the mean of its divisors is an integer number (55615992).

Almost surely, 2^111231983 is an apocalyptic number.

111231983 is a deficient number, since it is larger than the sum of its proper divisors (1).

111231983 is an equidigital number, since it uses as much as digits as its factorization.

111231983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 29.

The square root of 111231983 is about 10546.6574325708. The cubic root of 111231983 is about 480.9241210233.

The spelling of 111231983 in words is "one hundred eleven million, two hundred thirty-one thousand, nine hundred eighty-three".