12143999993 has 2 divisors, whose sum is σ = 12143999994. Its totient is φ = 12143999992.

The previous prime is 12143999983. The next prime is 12144000019. The reversal of 12143999993 is 39999934121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11162556409 + 981443584 = 105653^2 + 31328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12143999993 is a prime.

It is not a weakly prime, because it can be changed into another prime (12143999983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071999996 + 6071999997.

It is an arithmetic number, because the mean of its divisors is an integer number (6071999997).

Almost surely, 2^12143999993 is an apocalyptic number.

It is an amenable number.

12143999993 is a deficient number, since it is larger than the sum of its proper divisors (1).

12143999993 is an equidigital number, since it uses as much as digits as its factorization.

12143999993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4251528, while the sum is 59.

The spelling of 12143999993 in words is "twelve billion, one hundred forty-three million, nine hundred ninety-nine thousand, nine hundred ninety-three".