12528317803 has 2 divisors, whose sum is σ = 12528317804. Its totient is φ = 12528317802.

The previous prime is 12528317801. The next prime is 12528317821. The reversal of 12528317803 is 30871382521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12528317803 - 2¹ = 12528317801 is a prime.

Together with 12528317801, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12528317801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6264158901 + 6264158902.

It is an arithmetic number, because the mean of its divisors is an integer number (6264158902).

Almost surely, 2^12528317803 is an apocalyptic number.

12528317803 is a deficient number, since it is larger than the sum of its proper divisors (1).

12528317803 is an equidigital number, since it uses as much as digits as its factorization.

12528317803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 12528317803 in words is "twelve billion, five hundred twenty-eight million, three hundred seventeen thousand, eight hundred three".