112531231 has 4 divisors (see below), whose sum is σ = 114438600. Its totient is φ = 110623864.

The previous prime is 112531219. The next prime is 112531241. The reversal of 112531231 is 132135211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112531231 - 2⁷ = 112531103 is a prime.

It is a super-2 number, since 2×112531231² = 25326555900750722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112531199 and 112531208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112531201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953596 + ... + 953713.

It is an arithmetic number, because the mean of its divisors is an integer number (28609650).

Almost surely, 2^112531231 is an apocalyptic number.

112531231 is a deficient number, since it is larger than the sum of its proper divisors (1907369).

112531231 is an equidigital number, since it uses as much as digits as its factorization.

112531231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907368.

The product of its digits is 180, while the sum is 19.

The square root of 112531231 is about 10608.0738590943. The cubic root of 112531231 is about 482.7893595756.

Adding to 112531231 its reverse (132135211), we get a palindrome (244666442).

The spelling of 112531231 in words is "one hundred twelve million, five hundred thirty-one thousand, two hundred thirty-one".