12543520130280 has 128 divisors (see below), whose sum is σ = 41812510147200. Its totient is φ = 3344876591616.

The previous prime is 12543520130257. The next prime is 12543520130291. The reversal of 12543520130280 is 8203102534521.

12543520130280 is a `hidden beast` number, since 1 + 2 + 5 + 43 + 520 + 13 + 0 + 2 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 112515927 + ... + 112627353.

It is an arithmetic number, because the mean of its divisors is an integer number (326660235525).

Almost surely, 2^{12543520130280} is an apocalyptic number.

12543520130280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12543520130280 is an abundant number, since it is smaller than the sum of its proper divisors (29268990016920).

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

12543520130280 is a wasteful number, since it uses less digits than its factorization.

12543520130280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215680 (or 215670 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 12543520130280 in words is "twelve trillion, five hundred forty-three billion, five hundred twenty million, one hundred thirty thousand, two hundred eighty".