1323201323 has 4 divisors (see below), whose sum is σ = 1355474568. Its totient is φ = 1290928080.

The previous prime is 1323201311. The next prime is 1323201329. The reversal of 1323201323 is 3231023231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1323201323 - 2⁶ = 1323201259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323201295 and 1323201304.

It is not an unprimeable number, because it can be changed into a prime (1323201329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16136561 + ... + 16136642.

It is an arithmetic number, because the mean of its divisors is an integer number (338868642).

Almost surely, 2^1323201323 is an apocalyptic number.

1323201323 is a deficient number, since it is larger than the sum of its proper divisors (32273245).

1323201323 is an equidigital number, since it uses as much as digits as its factorization.

1323201323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32273244.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1323201323 is about 36375.8343272013. The cubic root of 1323201323 is about 1097.8473944157.

Adding to 1323201323 its reverse (3231023231), we get a palindrome (4554224554).

The spelling of 1323201323 in words is "one billion, three hundred twenty-three million, two hundred one thousand, three hundred twenty-three".