1322320323 has 4 divisors (see below), whose sum is σ = 1763093768. Its totient is φ = 881546880.

The previous prime is 1322320291. The next prime is 1322320343. The reversal of 1322320323 is 3230232231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3230232231 = 3 ⋅1076744077.

It is not a de Polignac number, because 1322320323 - 2⁵ = 1322320291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1322320323.

It is not an unprimeable number, because it can be changed into a prime (1322320343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220386718 + ... + 220386723.

It is an arithmetic number, because the mean of its divisors is an integer number (440773442).

Almost surely, 2^1322320323 is an apocalyptic number.

1322320323 is a deficient number, since it is larger than the sum of its proper divisors (440773445).

1322320323 is an equidigital number, since it uses as much as digits as its factorization.

1322320323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440773444.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 1322320323 is about 36363.7226229659. The cubic root of 1322320323 is about 1097.6036879152.

Adding to 1322320323 its reverse (3230232231), we get a palindrome (4552552554).

The spelling of 1322320323 in words is "one billion, three hundred twenty-two million, three hundred twenty thousand, three hundred twenty-three".