12443232423444 has 24 divisors (see below), whose sum is σ = 29818917340128. Its totient is φ = 4035642948000.

The previous prime is 12443232423403. The next prime is 12443232423449. The reversal of 12443232423444 is 44432423234421.

It is a super-2 number, since 2×12443232423444² (a number of 27 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12443232423396 and 12443232423405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443232423449) 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, 14012648682 + ... + 14012649569.

It is an arithmetic number, because the mean of its divisors is an integer number (1242454889172).

Almost surely, 2^{12443232423444} is an apocalyptic number.

It is an amenable number.

12443232423444 is an abundant number, since it is smaller than the sum of its proper divisors (17375684916684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12443232423444 is a wasteful number, since it uses less digits than its factorization.

12443232423444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28025298295 (or 28025298293 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 42.

Adding to 12443232423444 its reverse (44432423234421), we get a palindrome (56875655657865).

The spelling of 12443232423444 in words is "twelve trillion, four hundred forty-three billion, two hundred thirty-two million, four hundred twenty-three thousand, four hundred forty-four".