12543203351 has 16 divisors (see below), whose sum is σ = 14417441280. Its totient is φ = 10689628320.

The previous prime is 12543203333. The next prime is 12543203357. The reversal of 12543203351 is 15330234521.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12543203351 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 (12543203357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3847160 + ... + 3850418.

It is an arithmetic number, because the mean of its divisors is an integer number (901090080).

Almost surely, 2^12543203351 is an apocalyptic number.

12543203351 is a deficient number, since it is larger than the sum of its proper divisors (1874237929).

12543203351 is a wasteful number, since it uses less digits than its factorization.

12543203351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6254.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 12543203351 its reverse (15330234521), we get a palindrome (27873437872).

The spelling of 12543203351 in words is "twelve billion, five hundred forty-three million, two hundred three thousand, three hundred fifty-one".