1320320330 has 16 divisors (see below), whose sum is σ = 2716087680. Its totient is φ = 452681232.

The previous prime is 1320320329. The next prime is 1320320347. The reversal of 1320320330 is 330230231.

It is a super-2 number, since 2×1320320330² = 3486491547622617800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320320299 and 1320320308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9430790 + ... + 9430929.

It is an arithmetic number, because the mean of its divisors is an integer number (169755480).

Almost surely, 2^1320320330 is an apocalyptic number.

1320320330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320320330 is an abundant number, since it is smaller than the sum of its proper divisors (1395767350).

1320320330 is a wasteful number, since it uses less digits than its factorization.

1320320330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18861733.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 1320320330 is about 36336.2123782873. The cubic root of 1320320330 is about 1097.0500380613.

Adding to 1320320330 its reverse (330230231), we get a palindrome (1650550561).

Subtracting from 1320320330 its reverse (330230231), we obtain a palindrome (990090099).

It can be divided in two parts, 13203 and 20330, that added together give a palindrome (33533).

The spelling of 1320320330 in words is "one billion, three hundred twenty million, three hundred twenty thousand, three hundred thirty".