12443144133 has 12 divisors (see below), whose sum is σ = 19299570720. Its totient is φ = 7110367992.

The previous prime is 12443144111. The next prime is 12443144149. The reversal of 12443144133 is 33144134421.

It is not a de Polignac number, because 12443144133 - 2⁶ = 12443144069 is a prime.

It is a super-2 number, since 2×12443144133² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12443144133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443144533) 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, 42323473 + ... + 42323766.

It is an arithmetic number, because the mean of its divisors is an integer number (1608297560).

Almost surely, 2^12443144133 is an apocalyptic number.

It is an amenable number.

12443144133 is a deficient number, since it is larger than the sum of its proper divisors (6856426587).

12443144133 is an equidigital number, since it uses as much as digits as its factorization.

12443144133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84647256 (or 84647249 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

Adding to 12443144133 its reverse (33144134421), we get a palindrome (45587278554).

The spelling of 12443144133 in words is "twelve billion, four hundred forty-three million, one hundred forty-four thousand, one hundred thirty-three".