12513131325063 has 24 divisors (see below), whose sum is σ = 18160208866800. Its totient is φ = 8302581008640.

The previous prime is 12513131325043. The next prime is 12513131325067. The reversal of 12513131325063 is 36052313131521.

12513131325063 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 3 + 13 + 132 + 506 + 3 = 666.

It is not a de Polignac number, because 12513131325063 - 2¹³ = 12513131316871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513131325067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1987345 + ... + 5382917.

It is an arithmetic number, because the mean of its divisors is an integer number (756675369450).

Almost surely, 2^{12513131325063} is an apocalyptic number.

12513131325063 is a deficient number, since it is larger than the sum of its proper divisors (5647077541737).

12513131325063 is a wasteful number, since it uses less digits than its factorization.

12513131325063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397519 (or 3397516 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

Adding to 12513131325063 its reverse (36052313131521), we get a palindrome (48565444456584).

The spelling of 12513131325063 in words is "twelve trillion, five hundred thirteen billion, one hundred thirty-one million, three hundred twenty-five thousand, sixty-three".