2112443 has 8 divisors (see below), whose sum is σ = 2199120. Its totient is φ = 2027520.

The previous prime is 2112419. The next prime is 2112469. The reversal of 2112443 is 3442112.

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

It is a cyclic number.

It is not a de Polignac number, because 2112443 - 2¹⁰ = 2111419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112413) 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, 2363 + ... + 3131.

It is an arithmetic number, because the mean of its divisors is an integer number (274890).

2^2112443 is an apocalyptic number.

2112443 is a deficient number, since it is larger than the sum of its proper divisors (86677).

2112443 is an equidigital number, since it uses as much as digits as its factorization.

2112443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877.

The product of its digits is 192, while the sum is 17.

The square root of 2112443 is about 1453.4245766465. The cubic root of 2112443 is about 128.3103431390.

Adding to 2112443 its reverse (3442112), we get a palindrome (5554555).

The spelling of 2112443 in words is "two million, one hundred twelve thousand, four hundred forty-three".