12731373543 has 8 divisors (see below), whose sum is σ = 19400188288. Its totient is φ = 7275070584.

The previous prime is 12731373527. The next prime is 12731373553. The reversal of 12731373543 is 34537313721.

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

It is not a de Polignac number, because 12731373543 - 2⁴ = 12731373527 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 (12731373553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303127921 + ... + 303127962.

It is an arithmetic number, because the mean of its divisors is an integer number (2425023536).

Almost surely, 2^12731373543 is an apocalyptic number.

12731373543 is a deficient number, since it is larger than the sum of its proper divisors (6668814745).

12731373543 is an equidigital number, since it uses as much as digits as its factorization.

12731373543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606255893.

The product of its digits is 158760, while the sum is 39.

The spelling of 12731373543 in words is "twelve billion, seven hundred thirty-one million, three hundred seventy-three thousand, five hundred forty-three".