112443421 has 4 divisors (see below), whose sum is σ = 112471200. Its totient is φ = 112415644.

The previous prime is 112443413. The next prime is 112443427. The reversal of 112443421 is 124344211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124344211 = 59 ⋅2107529.

It is a cyclic number.

It is not a de Polignac number, because 112443421 - 2³ = 112443413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112443392 and 112443401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112443427) 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, 6511 + ... + 16348.

It is an arithmetic number, because the mean of its divisors is an integer number (28117800).

Almost surely, 2^112443421 is an apocalyptic number.

It is an amenable number.

112443421 is a deficient number, since it is larger than the sum of its proper divisors (27779).

112443421 is an equidigital number, since it uses as much as digits as its factorization.

112443421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27778.

The product of its digits is 768, while the sum is 22.

The square root of 112443421 is about 10603.9342227307. The cubic root of 112443421 is about 482.6637506967.

Adding to 112443421 its reverse (124344211), we get a palindrome (236787632).

The spelling of 112443421 in words is "one hundred twelve million, four hundred forty-three thousand, four hundred twenty-one".