1320310321 has 8 divisors (see below), whose sum is σ = 1525064544. Its totient is φ = 1129677120.

The previous prime is 1320310301. The next prime is 1320310379. The reversal of 1320310321 is 1230130231.

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

It is not a de Polignac number, because 1320310321 - 2¹¹ = 1320308273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320310295 and 1320310304.

It is not an unprimeable number, because it can be changed into a prime (1320310301) 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, 3530055 + ... + 3530428.

It is an arithmetic number, because the mean of its divisors is an integer number (190633068).

Almost surely, 2^1320310321 is an apocalyptic number.

1320310321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1320310321 is a deficient number, since it is larger than the sum of its proper divisors (204754223).

1320310321 is a wasteful number, since it uses less digits than its factorization.

1320310321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7060511.

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

The square root of 1320310321 is about 36336.0746504077. The cubic root of 1320310321 is about 1097.0472659053.

Adding to 1320310321 its reverse (1230130231), we get a palindrome (2550440552).

The spelling of 1320310321 in words is "one billion, three hundred twenty million, three hundred ten thousand, three hundred twenty-one".