112131231 has 8 divisors (see below), whose sum is σ = 149752320. Its totient is φ = 74632152.

The previous prime is 112131203. The next prime is 112131277. The reversal of 112131231 is 132131211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 112131231 - 2⁹ = 112130719 is a prime.

It is a super-2 number, since 2×112131231² = 25146825931150722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 112131231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112131931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28335 + ... + 32048.

It is an arithmetic number, because the mean of its divisors is an integer number (18719040).

Almost surely, 2^112131231 is an apocalyptic number.

112131231 is a deficient number, since it is larger than the sum of its proper divisors (37621089).

112131231 is an equidigital number, since it uses as much as digits as its factorization.

112131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61005.

The product of its digits is 36, while the sum is 15.

The square root of 112131231 is about 10589.2035111240. The cubic root of 112131231 is about 482.2166444593.

Adding to 112131231 its reverse (132131211), we get a palindrome (244262442).

The spelling of 112131231 in words is "one hundred twelve million, one hundred thirty-one thousand, two hundred thirty-one".