112131 has 8 divisors (see below), whose sum is σ = 166160. Its totient is φ = 74736.

The previous prime is 112129. The next prime is 112139. The reversal of 112131 is 131211.

It is not a de Polignac number, because 112131 - 2¹ = 112129 is a prime.

It is a super-2 number, since 2×112131² = 25146722322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (112139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2050 + ... + 2103.

It is an arithmetic number, because the mean of its divisors is an integer number (20770).

2¹¹²¹³¹ is an apocalyptic number.

112131 is a deficient number, since it is larger than the sum of its proper divisors (54029).

112131 is an equidigital number, since it uses as much as digits as its factorization.

112131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4162 (or 4156 counting only the distinct ones).

The product of its digits is 6, while the sum is 9.

The square root of 112131 is about 334.8596721016. The cubic root of 112131 is about 48.2216313323.

Adding to 112131 its reverse (131211), we get a palindrome (243342).

It can be divided in two parts, 112 and 131, that added together give a 5-th power (243 = 3⁵).

The spelling of 112131 in words is "one hundred twelve thousand, one hundred thirty-one".