12543000530 has 8 divisors (see below), whose sum is σ = 22577400972. Its totient is φ = 5017200208.

The previous prime is 12543000529. The next prime is 12543000559. The reversal of 12543000530 is 3500034521.

It can be written as a sum of positive squares in 2 ways, for example, as 12482922529 + 60078001 = 111727^2 + 7751^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12543000496 and 12543000505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627150017 + ... + 627150036.

Almost surely, 2^12543000530 is an apocalyptic number.

12543000530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12543000530 is a deficient number, since it is larger than the sum of its proper divisors (10034400442).

12543000530 is a wasteful number, since it uses less digits than its factorization.

12543000530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254300060.

The product of its (nonzero) digits is 1800, while the sum is 23.

The spelling of 12543000530 in words is "twelve billion, five hundred forty-three million, five hundred thirty", and thus it is an aban number.