1323321243 has 32 divisors (see below), whose sum is σ = 1883900160. Its totient is φ = 824664960.

The previous prime is 1323321133. The next prime is 1323321269. The reversal of 1323321243 is 3421233231.

1323321243 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1323321243 - 2¹⁴ = 1323304859 is a prime.

It is a super-2 number, since 2×1323321243² = 3502358224350130098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1323321343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 729808 + ... + 731618.

It is an arithmetic number, because the mean of its divisors is an integer number (58871880).

Almost surely, 2^1323321243 is an apocalyptic number.

1323321243 is a deficient number, since it is larger than the sum of its proper divisors (560578917).

1323321243 is a wasteful number, since it uses less digits than its factorization.

1323321243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107.

The product of its digits is 2592, while the sum is 24.

The square root of 1323321243 is about 36377.4826369280. The cubic root of 1323321243 is about 1097.8805589035.

Adding to 1323321243 its reverse (3421233231), we get a palindrome (4744554474).

The spelling of 1323321243 in words is "one billion, three hundred twenty-three million, three hundred twenty-one thousand, two hundred forty-three".