13128520111384 has 16 divisors (see below), whose sum is σ = 24766993464120. Its totient is φ = 6523988520960.

The previous prime is 13128520111381. The next prime is 13128520111391. The reversal of 13128520111384 is 48311102582131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13128520111381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5033940457 + ... + 5033943064.

Almost surely, 2^{13128520111384} is an apocalyptic number.

It is an amenable number.

13128520111384 is a deficient number, since it is larger than the sum of its proper divisors (11638473352736).

13128520111384 is a wasteful number, since it uses less digits than its factorization.

13128520111384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10067883690 (or 10067883686 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 13128520111384 in words is "thirteen trillion, one hundred twenty-eight billion, five hundred twenty million, one hundred eleven thousand, three hundred eighty-four".