12443113 has 4 divisors (see below), whose sum is σ = 12557380. Its totient is φ = 12328848.

The previous prime is 12443107. The next prime is 12443129. The reversal of 12443113 is 31134421.

12443113 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31134421 = 3557 ⋅8753.

It can be written as a sum of positive squares in 2 ways, for example, as 10156969 + 2286144 = 3187^2 + 1512^2 .

It is a cyclic number.

It is not a de Polignac number, because 12443113 - 2⁹ = 12442601 is a prime.

It is a super-2 number, since 2×12443113² = 309662122261538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12443153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56970 + ... + 57187.

It is an arithmetic number, because the mean of its divisors is an integer number (3139345).

Almost surely, 2^12443113 is an apocalyptic number.

It is an amenable number.

12443113 is a deficient number, since it is larger than the sum of its proper divisors (114267).

12443113 is a wasteful number, since it uses less digits than its factorization.

12443113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114266.

The product of its digits is 288, while the sum is 19.

The square root of 12443113 is about 3527.4796951932. The cubic root of 12443113 is about 231.7268448351.

Adding to 12443113 its reverse (31134421), we get a palindrome (43577534).

The spelling of 12443113 in words is "twelve million, four hundred forty-three thousand, one hundred thirteen".