1320320303 has 8 divisors (see below), whose sum is σ = 1329472560. Its totient is φ = 1311197760.

The previous prime is 1320320269. The next prime is 1320320327. The reversal of 1320320303 is 3030230231.

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 1320320303 - 2²⁰ = 1319271727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320320383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85733 + ... + 99953.

It is an arithmetic number, because the mean of its divisors is an integer number (166184070).

Almost surely, 2^1320320303 is an apocalyptic number.

1320320303 is a deficient number, since it is larger than the sum of its proper divisors (9152257).

1320320303 is a wasteful number, since it uses less digits than its factorization.

1320320303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14857.

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

The square root of 1320320303 is about 36336.2120067571. The cubic root of 1320320303 is about 1097.0500305832.

Adding to 1320320303 its reverse (3030230231), we get a palindrome (4350550534).

The spelling of 1320320303 in words is "one billion, three hundred twenty million, three hundred twenty thousand, three hundred three".