1323143399189 has 2 divisors, whose sum is σ = 1323143399190. Its totient is φ = 1323143399188.

The previous prime is 1323143399183. The next prime is 1323143399197. The reversal of 1323143399189 is 9819933413231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 917045640625 + 406097758564 = 957625^2 + 637258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323143399189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323143399183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661571699594 + 661571699595.

It is an arithmetic number, because the mean of its divisors is an integer number (661571699595).

Almost surely, 2^{1323143399189} is an apocalyptic number.

It is an amenable number.

1323143399189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323143399189 is an equidigital number, since it uses as much as digits as its factorization.

1323143399189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 56.

The spelling of 1323143399189 in words is "one trillion, three hundred twenty-three billion, one hundred forty-three million, three hundred ninety-nine thousand, one hundred eighty-nine".