13004023543 has 8 divisors (see below), whose sum is σ = 14892013440. Its totient is φ = 11123601720.

The previous prime is 13004023517. The next prime is 13004023577. The reversal of 13004023543 is 34532040031.

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

It is a de Polignac number, because none of the positive numbers 2^k-13004023543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13004023583) 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, 1888333 + ... + 1895206.

It is an arithmetic number, because the mean of its divisors is an integer number (1861501680).

Almost surely, 2^13004023543 is an apocalyptic number.

13004023543 is a deficient number, since it is larger than the sum of its proper divisors (1887989897).

13004023543 is an equidigital number, since it uses as much as digits as its factorization.

13004023543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3784037.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 13004023543 its reverse (34532040031), we get a palindrome (47536063574).

The spelling of 13004023543 in words is "thirteen billion, four million, twenty-three thousand, five hundred forty-three".