1320130321 has 8 divisors (see below), whose sum is σ = 1339075584. Its totient is φ = 1301208480.

The previous prime is 1320130309. The next prime is 1320130351. The reversal of 1320130321 is 1230310231.

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 1320130321 - 2¹³ = 1320122129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320130295 and 1320130304.

It is not an unprimeable number, because it can be changed into a prime (1320130351) by changing a digit.

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, 129936 + ... + 139726.

It is an arithmetic number, because the mean of its divisors is an integer number (167384448).

Almost surely, 2^1320130321 is an apocalyptic number.

It is an amenable number.

1320130321 is a deficient number, since it is larger than the sum of its proper divisors (18945263).

1320130321 is an equidigital number, since it uses as much as digits as its factorization.

1320130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11711.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1320130321 is about 36333.5976886407. The cubic root of 1320130321 is about 1096.9974095751.

Adding to 1320130321 its reverse (1230310231), we get a palindrome (2550440552).

The spelling of 1320130321 in words is "one billion, three hundred twenty million, one hundred thirty thousand, three hundred twenty-one".