13125444511512 has 128 divisors (see below), whose sum is σ = 32980058496000. Its totient is φ = 4353036000768.

The previous prime is 13125444511493. The next prime is 13125444511559. The reversal of 13125444511512 is 21511544452131.

It is a super-2 number, since 2×13125444511512² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7106357773 + ... + 7106359619.

It is an arithmetic number, because the mean of its divisors is an integer number (257656707000).

Almost surely, 2^{13125444511512} is an apocalyptic number.

13125444511512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13125444511512 is an abundant number, since it is smaller than the sum of its proper divisors (19854613984488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13125444511512 is a wasteful number, since it uses less digits than its factorization.

13125444511512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865 (or 3861 counting only the distinct ones).

The product of its digits is 96000, while the sum is 39.

Adding to 13125444511512 its reverse (21511544452131), we get a palindrome (34636988963643).

The spelling of 13125444511512 in words is "thirteen trillion, one hundred twenty-five billion, four hundred forty-four million, five hundred eleven thousand, five hundred twelve".