111225823 has 2 divisors, whose sum is σ = 111225824. Its totient is φ = 111225822.

The previous prime is 111225773. The next prime is 111225827. The reversal of 111225823 is 328522111.

It is a strong prime.

It is an emirp because it is prime and its reverse (328522111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111225823 - 2¹⁷ = 111094751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111225827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55612911 + 55612912.

It is an arithmetic number, because the mean of its divisors is an integer number (55612912).

Almost surely, 2^111225823 is an apocalyptic number.

111225823 is a deficient number, since it is larger than the sum of its proper divisors (1).

111225823 is an equidigital number, since it uses as much as digits as its factorization.

111225823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 25.

The square root of 111225823 is about 10546.3653928735. The cubic root of 111225823 is about 480.9152430393.

Adding to 111225823 its reverse (328522111), we get a palindrome (439747934).

The spelling of 111225823 in words is "one hundred eleven million, two hundred twenty-five thousand, eight hundred twenty-three".