12443244234421 has 32 divisors (see below), whose sum is σ = 16805871532800. Its totient is φ = 8950185541440.

The previous prime is 12443244234413. The next prime is 12443244234427.

12443244234421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12443244234421 - 2³ = 12443244234413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443244234427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36608386 + ... + 36946723.

It is an arithmetic number, because the mean of its divisors is an integer number (525183485400).

Almost surely, 2^{12443244234421} is an apocalyptic number.

12443244234421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12443244234421 is a deficient number, since it is larger than the sum of its proper divisors (4362627298379).

12443244234421 is an equidigital number, since it uses as much as digits as its factorization.

12443244234421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73555166 (or 73555140 counting only the distinct ones).

The product of its digits is 589824, while the sum is 40.

It can be divided in two parts, 1244324 and 4234421, that added together give a palindrome (5478745).

The spelling of 12443244234421 in words is "twelve trillion, four hundred forty-three billion, two hundred forty-four million, two hundred thirty-four thousand, four hundred twenty-one".