13261560003 has 48 divisors (see below), whose sum is σ = 20684113632. Its totient is φ = 8483616000.

The previous prime is 13261560001. The next prime is 13261560007. The reversal of 13261560003 is 30006516231.

13261560003 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 13261560003 - 2¹ = 13261560001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13261560001) 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, 596833 + ... + 618653.

It is an arithmetic number, because the mean of its divisors is an integer number (430919034).

Almost surely, 2^13261560003 is an apocalyptic number.

13261560003 is a deficient number, since it is larger than the sum of its proper divisors (7422553629).

13261560003 is an equidigital number, since it uses as much as digits as its factorization.

13261560003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21938 (or 21926 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The spelling of 13261560003 in words is "thirteen billion, two hundred sixty-one million, five hundred sixty thousand, three".