12513588481 has 4 divisors (see below), whose sum is σ = 12515186992. Its totient is φ = 12511989972.

The previous prime is 12513588457. The next prime is 12513588487. The reversal of 12513588481 is 18488531521.

12513588481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18488531521 = 17987 ⋅1027883.

It is a cyclic number.

It is not a de Polignac number, because 12513588481 - 2¹¹ = 12513586433 is a prime.

It is a super-2 number, since 2×12513588481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12513588487) 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 3 ways as a sum of consecutive naturals, for example, 787455 + ... + 803188.

It is an arithmetic number, because the mean of its divisors is an integer number (3128796748).

Almost surely, 2^12513588481 is an apocalyptic number.

It is an amenable number.

12513588481 is a deficient number, since it is larger than the sum of its proper divisors (1598511).

12513588481 is an equidigital number, since it uses as much as digits as its factorization.

12513588481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598510.

The product of its digits is 307200, while the sum is 46.

The spelling of 12513588481 in words is "twelve billion, five hundred thirteen million, five hundred eighty-eight thousand, four hundred eighty-one".