12543113455 has 8 divisors (see below), whose sum is σ = 15061042800. Its totient is φ = 10028286336.

The previous prime is 12543113449. The next prime is 12543113489. The reversal of 12543113455 is 55431134521.

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

It is a cyclic number.

It is not a de Polignac number, because 12543113455 - 2¹⁹ = 12542589167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12543113455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766650 + ... + 782839.

It is an arithmetic number, because the mean of its divisors is an integer number (1882630350).

Almost surely, 2^12543113455 is an apocalyptic number.

12543113455 is a deficient number, since it is larger than the sum of its proper divisors (2517929345).

12543113455 is a wasteful number, since it uses less digits than its factorization.

12543113455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551113.

The product of its digits is 36000, while the sum is 34.

Adding to 12543113455 its reverse (55431134521), we get a palindrome (67974247976).

The spelling of 12543113455 in words is "twelve billion, five hundred forty-three million, one hundred thirteen thousand, four hundred fifty-five".