111442307 has 2 divisors, whose sum is σ = 111442308. Its totient is φ = 111442306.

The previous prime is 111442271. The next prime is 111442313. The reversal of 111442307 is 703244111.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (703244111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111442307 - 2¹⁸ = 111180163 is a prime.

It is not a weakly prime, because it can be changed into another prime (111442367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55721153 + 55721154.

It is an arithmetic number, because the mean of its divisors is an integer number (55721154).

Almost surely, 2^111442307 is an apocalyptic number.

111442307 is a deficient number, since it is larger than the sum of its proper divisors (1).

111442307 is an equidigital number, since it uses as much as digits as its factorization.

111442307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 111442307 is about 10556.6238447716. The cubic root of 111442307 is about 481.2270500778.

Adding to 111442307 its reverse (703244111), we get a palindrome (814686418).

The spelling of 111442307 in words is "one hundred eleven million, four hundred forty-two thousand, three hundred seven".