12443311334421 has 96 divisors (see below), whose sum is σ = 20017306183680. Its totient is φ = 7385633136000.

The previous prime is 12443311334411. The next prime is 12443311334429.

12443311334421 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 3 + 311 + 334 + 4 + 2 + 1 = 666.

12443311334421 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-12443311334421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443311334429) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 946468770 + ... + 946481916.

It is an arithmetic number, because the mean of its divisors is an integer number (208513606080).

Almost surely, 2^{12443311334421} is an apocalyptic number.

12443311334421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12443311334421 is a deficient number, since it is larger than the sum of its proper divisors (7573994849259).

12443311334421 is a wasteful number, since it uses less digits than its factorization.

12443311334421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14287 (or 14284 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

It can be divided in two parts, 1244331 and 1334421, that added together give a palindrome (2578752).

The spelling of 12443311334421 in words is "twelve trillion, four hundred forty-three billion, three hundred eleven million, three hundred thirty-four thousand, four hundred twenty-one".