112112131 has 4 divisors (see below), whose sum is σ = 112760352. Its totient is φ = 111463912.

The previous prime is 112112129. The next prime is 112112177. The reversal of 112112131 is 131211211.

It is a happy number.

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 112112131 - 2¹ = 112112129 is a prime.

It is a super-2 number, since 2×112112131² = 25138259834722322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112112111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323851 + ... + 324196.

It is an arithmetic number, because the mean of its divisors is an integer number (28190088).

Almost surely, 2^112112131 is an apocalyptic number.

112112131 is a deficient number, since it is larger than the sum of its proper divisors (648221).

112112131 is an equidigital number, since it uses as much as digits as its factorization.

112112131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648220.

The product of its digits is 12, while the sum is 13.

The square root of 112112131 is about 10588.3016107400. The cubic root of 112112131 is about 482.1892632655.

Adding to 112112131 its reverse (131211211), we get a palindrome (243323342).

The spelling of 112112131 in words is "one hundred twelve million, one hundred twelve thousand, one hundred thirty-one".