12323444403 has 16 divisors (see below), whose sum is σ = 17345934720. Its totient is φ = 7760785536.

The previous prime is 12323444387. The next prime is 12323444447. The reversal of 12323444403 is 30444432321.

It is a happy number.

It is not a de Polignac number, because 12323444403 - 2⁴ = 12323444387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12323444473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291750 + ... + 331307.

It is an arithmetic number, because the mean of its divisors is an integer number (1084120920).

Almost surely, 2^12323444403 is an apocalyptic number.

12323444403 is a deficient number, since it is larger than the sum of its proper divisors (5022490317).

12323444403 is a wasteful number, since it uses less digits than its factorization.

12323444403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623426.

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

Adding to 12323444403 its reverse (30444432321), we get a palindrome (42767876724).

The spelling of 12323444403 in words is "twelve billion, three hundred twenty-three million, four hundred forty-four thousand, four hundred three".