1322320331 has 8 divisors (see below), whose sum is σ = 1351118400. Its totient is φ = 1293735240.

The previous prime is 1322320291. The next prime is 1322320343. The reversal of 1322320331 is 1330232231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1322320331 - 2¹⁴ = 1322303947 is a prime.

It is a super-2 number, since 2×1322320331² = 3497062115551899122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322320031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40661 + ... + 65558.

It is an arithmetic number, because the mean of its divisors is an integer number (168889800).

Almost surely, 2^1322320331 is an apocalyptic number.

1322320331 is a deficient number, since it is larger than the sum of its proper divisors (28798069).

1322320331 is a wasteful number, since it uses less digits than its factorization.

1322320331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106489.

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

The square root of 1322320331 is about 36363.7227329656. The cubic root of 1322320331 is about 1097.6036901287.

Adding to 1322320331 its reverse (1330232231), we get a palindrome (2652552562).

The spelling of 1322320331 in words is "one billion, three hundred twenty-two million, three hundred twenty thousand, three hundred thirty-one".