12331232552543 has 4 divisors (see below), whose sum is σ = 12332642328360. Its totient is φ = 12329822776728.

The previous prime is 12331232552521. The next prime is 12331232552557. The reversal of 12331232552543 is 34525523213321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12331232552543 - 2¹² = 12331232548447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12331232552543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331232557543) 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, 704874788 + ... + 704892281.

It is an arithmetic number, because the mean of its divisors is an integer number (3083160582090).

Almost surely, 2^{12331232552543} is an apocalyptic number.

12331232552543 is a deficient number, since it is larger than the sum of its proper divisors (1409775817).

12331232552543 is an equidigital number, since it uses as much as digits as its factorization.

12331232552543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409775816.

The product of its digits is 648000, while the sum is 41.

Adding to 12331232552543 its reverse (34525523213321), we get a palindrome (46856755765864).

The spelling of 12331232552543 in words is "twelve trillion, three hundred thirty-one billion, two hundred thirty-two million, five hundred fifty-two thousand, five hundred forty-three".