12112843 has 4 divisors (see below), whose sum is σ = 12224080. Its totient is φ = 12001608.

The previous prime is 12112819. The next prime is 12112883. The reversal of 12112843 is 34821121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34821121 = 3461 ⋅10061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12112843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55455 + ... + 55672.

It is an arithmetic number, because the mean of its divisors is an integer number (3056020).

Almost surely, 2^12112843 is an apocalyptic number.

12112843 is a deficient number, since it is larger than the sum of its proper divisors (111237).

12112843 is a wasteful number, since it uses less digits than its factorization.

12112843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111236.

The product of its digits is 384, while the sum is 22.

The square root of 12112843 is about 3480.3509880470. The cubic root of 12112843 is about 229.6582384831.

Adding to 12112843 its reverse (34821121), we get a palindrome (46933964).

The spelling of 12112843 in words is "twelve million, one hundred twelve thousand, eight hundred forty-three".