1320330321 has 8 divisors (see below), whose sum is σ = 1956044960. Its totient is φ = 880220196.

The previous prime is 1320330301. The next prime is 1320330337. The reversal of 1320330321 is 1230330231.

1320330321 is a `hidden beast` number, since 13 + 2 + 0 + 330 + 321 = 666.

It is not a de Polignac number, because 1320330321 - 2⁹ = 1320329809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320330294 and 1320330303.

It is not an unprimeable number, because it can be changed into a prime (1320330301) 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, 24450535 + ... + 24450588.

It is an arithmetic number, because the mean of its divisors is an integer number (244505620).

Almost surely, 2^1320330321 is an apocalyptic number.

It is an amenable number.

1320330321 is a deficient number, since it is larger than the sum of its proper divisors (635714639).

1320330321 is an equidigital number, since it uses as much as digits as its factorization.

1320330321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48901132 (or 48901126 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1320330321 is about 36336.3498579590. The cubic root of 1320330321 is about 1097.0528052179.

Adding to 1320330321 its reverse (1230330231), we get a palindrome (2550660552).

The spelling of 1320330321 in words is "one billion, three hundred twenty million, three hundred thirty thousand, three hundred twenty-one".