12543355233 has 48 divisors (see below), whose sum is σ = 19173697920. Its totient is φ = 7886115072.

The previous prime is 12543355207. The next prime is 12543355241. The reversal of 12543355233 is 33255334521.

12543355233 is a `hidden beast` number, since 1 + 2 + 543 + 35 + 52 + 33 = 666.

12543355233 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 12543355233 - 2¹³ = 12543347041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12543355243) 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 47 ways as a sum of consecutive naturals, for example, 5070885 + ... + 5073357.

It is an arithmetic number, because the mean of its divisors is an integer number (399452040).

Almost surely, 2^12543355233 is an apocalyptic number.

It is an amenable number.

12543355233 is a deficient number, since it is larger than the sum of its proper divisors (6630342687).

12543355233 is a wasteful number, since it uses less digits than its factorization.

12543355233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838 (or 2835 counting only the distinct ones).

The product of its digits is 162000, while the sum is 36.

Adding to 12543355233 its reverse (33255334521), we get a palindrome (45798689754).

The spelling of 12543355233 in words is "twelve billion, five hundred forty-three million, three hundred fifty-five thousand, two hundred thirty-three".