12543515542113 has 8 divisors (see below), whose sum is σ = 16724734754208. Its totient is φ = 8362320012384.

The previous prime is 12543515542111. The next prime is 12543515542133. The reversal of 12543515542113 is 31124551534521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12543515542113 - 2¹ = 12543515542111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12543515542111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4645495 + ... + 6831372.

It is an arithmetic number, because the mean of its divisors is an integer number (2090591844276).

Almost surely, 2^{12543515542113} is an apocalyptic number.

It is an amenable number.

12543515542113 is a deficient number, since it is larger than the sum of its proper divisors (4181219212095).

12543515542113 is a wasteful number, since it uses less digits than its factorization.

12543515542113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11841183.

The product of its digits is 360000, while the sum is 42.

The spelling of 12543515542113 in words is "twelve trillion, five hundred forty-three billion, five hundred fifteen million, five hundred forty-two thousand, one hundred thirteen".