12304423443 has 16 divisors (see below), whose sum is σ = 17681481216. Its totient is φ = 7566128160.

The previous prime is 12304423409. The next prime is 12304423447. The reversal of 12304423443 is 34432440321.

It is a happy number.

It is not a de Polignac number, because 12304423443 - 2⁶ = 12304423379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12304423443.

It is not an unprimeable number, because it can be changed into a prime (12304423447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69723 + ... + 171668.

It is an arithmetic number, because the mean of its divisors is an integer number (1105092576).

Almost surely, 2^12304423443 is an apocalyptic number.

12304423443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12304423443 is a deficient number, since it is larger than the sum of its proper divisors (5377057773).

12304423443 is a wasteful number, since it uses less digits than its factorization.

12304423443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242714.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 12304423443 its reverse (34432440321), we get a palindrome (46736863764).

The spelling of 12304423443 in words is "twelve billion, three hundred four million, four hundred twenty-three thousand, four hundred forty-three".