12013320401443 has 4 divisors (see below), whose sum is σ = 12013428815608. Its totient is φ = 12013211987280.

The previous prime is 12013320401441. The next prime is 12013320401447. The reversal of 12013320401443 is 34410402331021.

It is a happy number.

12013320401443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12013320401443 - 2¹ = 12013320401441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12013320401441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54040698 + ... + 54262543.

It is an arithmetic number, because the mean of its divisors is an integer number (3003357203902).

Almost surely, 2^{12013320401443} is an apocalyptic number.

12013320401443 is a deficient number, since it is larger than the sum of its proper divisors (108414165).

12013320401443 is a wasteful number, since it uses less digits than its factorization.

12013320401443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108414164.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 12013320401443 its reverse (34410402331021), we get a palindrome (46423722732464).

The spelling of 12013320401443 in words is "twelve trillion, thirteen billion, three hundred twenty million, four hundred one thousand, four hundred forty-three".