12543887341 has 4 divisors (see below), whose sum is σ = 12545104000. Its totient is φ = 12542670684.

The previous prime is 12543887339. The next prime is 12543887351. The reversal of 12543887341 is 14378834521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12543887341 - 2¹ = 12543887339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12543887291 and 12543887300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12543887351) 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, 592731 + ... + 613528.

It is an arithmetic number, because the mean of its divisors is an integer number (3136276000).

Almost surely, 2^12543887341 is an apocalyptic number.

It is an amenable number.

12543887341 is a deficient number, since it is larger than the sum of its proper divisors (1216659).

12543887341 is a wasteful number, since it uses less digits than its factorization.

12543887341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216658.

The product of its digits is 645120, while the sum is 46.

The spelling of 12543887341 in words is "twelve billion, five hundred forty-three million, eight hundred eighty-seven thousand, three hundred forty-one".