1320340313 has 8 divisors (see below), whose sum is σ = 1364284416. Its totient is φ = 1276480800.

The previous prime is 1320340283. The next prime is 1320340331. The reversal of 1320340313 is 3130430231.

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

It is not a de Polignac number, because 1320340313 - 2³⁰ = 246598489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320340363) 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, 11408 + ... + 52638.

It is an arithmetic number, because the mean of its divisors is an integer number (170535552).

Almost surely, 2^1320340313 is an apocalyptic number.

It is an amenable number.

1320340313 is a deficient number, since it is larger than the sum of its proper divisors (43944103).

1320340313 is a wasteful number, since it uses less digits than its factorization.

1320340313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42295.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1320340313 is about 36336.4873508709. The cubic root of 1320340313 is about 1097.0555726374.

Adding to 1320340313 its reverse (3130430231), we get a palindrome (4450770544).

The spelling of 1320340313 in words is "one billion, three hundred twenty million, three hundred forty thousand, three hundred thirteen".