12443333334421 has 32 divisors (see below), whose sum is σ = 14312411625600. Its totient is φ = 10699192385280.

The previous prime is 12443333334413. The next prime is 12443333334457.

12443333334421 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 12443333334421 - 2³ = 12443333334413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443333394421) 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, 704237775 + ... + 704255443.

It is an arithmetic number, because the mean of its divisors is an integer number (447262863300).

Almost surely, 2^{12443333334421} is an apocalyptic number.

12443333334421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12443333334421 is a deficient number, since it is larger than the sum of its proper divisors (1869078291179).

12443333334421 is a wasteful number, since it uses less digits than its factorization.

12443333334421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23029.

The product of its digits is 746496, while the sum is 40.

It can be divided in two parts, 1244333 and 3334421, that added together give a palindrome (4578754).

The spelling of 12443333334421 in words is "twelve trillion, four hundred forty-three billion, three hundred thirty-three million, three hundred thirty-four thousand, four hundred twenty-one".