12403304543 has 16 divisors (see below), whose sum is σ = 14670675264. Its totient is φ = 10265149440.

The previous prime is 12403304531. The next prime is 12403304609. The reversal of 12403304543 is 34540330421.

It is not a de Polignac number, because 12403304543 - 2⁴ = 12403304527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403304503) 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, 194930 + ... + 250607.

It is an arithmetic number, because the mean of its divisors is an integer number (916917204).

Almost surely, 2^12403304543 is an apocalyptic number.

12403304543 is a deficient number, since it is larger than the sum of its proper divisors (2267370721).

12403304543 is an equidigital number, since it uses as much as digits as its factorization.

12403304543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445682.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 12403304543 its reverse (34540330421), we get a palindrome (46943634964).

The spelling of 12403304543 in words is "twelve billion, four hundred three million, three hundred four thousand, five hundred forty-three".