12447561303 has 8 divisors (see below), whose sum is σ = 18440831600. Its totient is φ = 8298374184.

The previous prime is 12447561289. The next prime is 12447561307. The reversal of 12447561303 is 30316574421.

12447561303 is a `hidden beast` number, since 1 + 24 + 47 + 561 + 30 + 3 = 666.

It is not a de Polignac number, because 12447561303 - 2⁶ = 12447561239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12447561307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230510368 + ... + 230510421.

It is an arithmetic number, because the mean of its divisors is an integer number (2305103950).

Almost surely, 2^12447561303 is an apocalyptic number.

12447561303 is a deficient number, since it is larger than the sum of its proper divisors (5993270297).

12447561303 is an equidigital number, since it uses as much as digits as its factorization.

12447561303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461020798 (or 461020792 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 12447561303 in words is "twelve billion, four hundred forty-seven million, five hundred sixty-one thousand, three hundred three".