1323143563 has 16 divisors (see below), whose sum is σ = 1579055616. Its totient is φ = 1084026240.

The previous prime is 1323143561. The next prime is 1323143573. The reversal of 1323143563 is 3653413231.

It is a cyclic number.

It is not a de Polignac number, because 1323143563 - 2¹ = 1323143561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1323143561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346020 + ... + 349822.

It is an arithmetic number, because the mean of its divisors is an integer number (98690976).

Almost surely, 2^1323143563 is an apocalyptic number.

1323143563 is a deficient number, since it is larger than the sum of its proper divisors (255912053).

1323143563 is a wasteful number, since it uses less digits than its factorization.

1323143563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994.

The product of its digits is 19440, while the sum is 31.

The square root of 1323143563 is about 36375.0403848573. The cubic root of 1323143563 is about 1097.8314198780.

Adding to 1323143563 its reverse (3653413231), we get a palindrome (4976556794).

The spelling of 1323143563 in words is "one billion, three hundred twenty-three million, one hundred forty-three thousand, five hundred sixty-three".