12543355143 has 32 divisors (see below), whose sum is σ = 20279877120. Its totient is φ = 7599113280.

The previous prime is 12543355093. The next prime is 12543355151. The reversal of 12543355143 is 34155334521.

12543355143 is a `hidden beast` number, since 1 + 25 + 43 + 3 + 551 + 43 = 666.

12543355143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12543355143 - 2⁶ = 12543355079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12543355098 and 12543355107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12543355183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 960846 + ... + 973812.

It is an arithmetic number, because the mean of its divisors is an integer number (633746160).

Almost surely, 2^12543355143 is an apocalyptic number.

12543355143 is a deficient number, since it is larger than the sum of its proper divisors (7736521977).

12543355143 is a wasteful number, since it uses less digits than its factorization.

12543355143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16244 (or 16238 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

Adding to 12543355143 its reverse (34155334521), we get a palindrome (46698689664).

The spelling of 12543355143 in words is "twelve billion, five hundred forty-three million, three hundred fifty-five thousand, one hundred forty-three".