111623843 has 2 divisors, whose sum is σ = 111623844. Its totient is φ = 111623842.

The previous prime is 111623821. The next prime is 111623849. The reversal of 111623843 is 348326111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111623843 - 2⁶ = 111623779 is a prime.

It is not a weakly prime, because it can be changed into another prime (111623849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55811921 + 55811922.

It is an arithmetic number, because the mean of its divisors is an integer number (55811922).

Almost surely, 2^111623843 is an apocalyptic number.

111623843 is a deficient number, since it is larger than the sum of its proper divisors (1).

111623843 is an equidigital number, since it uses as much as digits as its factorization.

111623843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 111623843 is about 10565.2185495616. The cubic root of 111623843 is about 481.4882095465.

Adding to 111623843 its reverse (348326111), we get a palindrome (459949954).

The spelling of 111623843 in words is "one hundred eleven million, six hundred twenty-three thousand, eight hundred forty-three".