12331243164643 has 16 divisors (see below), whose sum is σ = 14145162494400. Its totient is φ = 10648965805056.

The previous prime is 12331243164623. The next prime is 12331243164683. The reversal of 12331243164643 is 34646134213321.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12331243164643 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 12331243164643.

It is not an unprimeable number, because it can be changed into a prime (12331243164623) 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, 167021418 + ... + 167095231.

It is an arithmetic number, because the mean of its divisors is an integer number (884072655900).

Almost surely, 2^{12331243164643} is an apocalyptic number.

12331243164643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12331243164643 is a deficient number, since it is larger than the sum of its proper divisors (1813919329757).

12331243164643 is a wasteful number, since it uses less digits than its factorization.

12331243164643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334116846.

The product of its digits is 746496, while the sum is 43.

Adding to 12331243164643 its reverse (34646134213321), we get a palindrome (46977377377964).

The spelling of 12331243164643 in words is "twelve trillion, three hundred thirty-one billion, two hundred forty-three million, one hundred sixty-four thousand, six hundred forty-three".