12443031 has 16 divisors (see below), whose sum is σ = 19519200. Its totient is φ = 7807104.

The previous prime is 12443029. The next prime is 12443047. The reversal of 12443031 is 13034421.

12443031 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12443031 - 2¹ = 12443029 is a prime.

It is a super-2 number, since 2×12443031² = 309658040933922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12442995 and 12443013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443231) 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 15 ways as a sum of consecutive naturals, for example, 13096 + ... + 14013.

It is an arithmetic number, because the mean of its divisors is an integer number (1219950).

Almost surely, 2^12443031 is an apocalyptic number.

12443031 is a deficient number, since it is larger than the sum of its proper divisors (7076169).

12443031 is a wasteful number, since it uses less digits than its factorization.

12443031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27135 (or 27129 counting only the distinct ones).

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

The square root of 12443031 is about 3527.4680721447. The cubic root of 12443031 is about 231.7263358081.

Adding to 12443031 its reverse (13034421), we get a palindrome (25477452).

The spelling of 12443031 in words is "twelve million, four hundred forty-three thousand, thirty-one".