1322303321 has 4 divisors (see below), whose sum is σ = 1335935412. Its totient is φ = 1308671232.

The previous prime is 1322303317. The next prime is 1322303351. The reversal of 1322303321 is 1233032231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 794958025 + 527345296 = 28195^2 + 22964^2 .

It is not a de Polignac number, because 1322303321 - 2² = 1322303317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1322303293 and 1322303302.

It is not an unprimeable number, because it can be changed into a prime (1322303351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6815900 + ... + 6816093.

It is an arithmetic number, because the mean of its divisors is an integer number (333983853).

Almost surely, 2^1322303321 is an apocalyptic number.

It is an amenable number.

1322303321 is a deficient number, since it is larger than the sum of its proper divisors (13632091).

1322303321 is an equidigital number, since it uses as much as digits as its factorization.

1322303321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13632090.

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

The square root of 1322303321 is about 36363.4888452690. The cubic root of 1322303321 is about 1097.5989836748.

Adding to 1322303321 its reverse (1233032231), we get a palindrome (2555335552).

The spelling of 1322303321 in words is "one billion, three hundred twenty-two million, three hundred three thousand, three hundred twenty-one".