12443013 has 12 divisors (see below), whose sum is σ = 19607328. Its totient is φ = 7541160.

The previous prime is 12442999. The next prime is 12443029. The reversal of 12443013 is 31034421.

It is a de Polignac number, because none of the positive numbers 2^k-12443013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62745 + ... + 62942.

It is an arithmetic number, because the mean of its divisors is an integer number (1633944).

Almost surely, 2^12443013 is an apocalyptic number.

It is an amenable number.

12443013 is a deficient number, since it is larger than the sum of its proper divisors (7164315).

12443013 is a wasteful number, since it uses less digits than its factorization.

12443013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125704 (or 125701 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12443013 is about 3527.4655207387. The cubic root of 12443013 is about 231.7262240701.

Adding to 12443013 its reverse (31034421), we get a palindrome (43477434).

The spelling of 12443013 in words is "twelve million, four hundred forty-three thousand, thirteen".