231112823 has 2 divisors, whose sum is σ = 231112824. Its totient is φ = 231112822.

The previous prime is 231112759. The next prime is 231112837. The reversal of 231112823 is 328211132.

It is a happy number.

231112823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231112823 - 2⁶ = 231112759 is a prime.

It is a super-3 number, since 3×231112823³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231112883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115556411 + 115556412.

It is an arithmetic number, because the mean of its divisors is an integer number (115556412).

Almost surely, 2^231112823 is an apocalyptic number.

231112823 is a deficient number, since it is larger than the sum of its proper divisors (1).

231112823 is an equidigital number, since it uses as much as digits as its factorization.

231112823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 23.

The square root of 231112823 is about 15202.3953046880. The cubic root of 231112823 is about 613.6791207106.

Adding to 231112823 its reverse (328211132), we get a palindrome (559323955).

The spelling of 231112823 in words is "two hundred thirty-one million, one hundred twelve thousand, eight hundred twenty-three".