1320313023320 has 128 divisors (see below), whose sum is σ = 3197694931200. Its totient is φ = 488852422656.

The previous prime is 1320313023317. The next prime is 1320313023343. The reversal of 1320313023320 is 233203130231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13758224 + ... + 13853856.

It is an arithmetic number, because the mean of its divisors is an integer number (24981991650).

Almost surely, 2^{1320313023320} is an apocalyptic number.

1320313023320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320313023320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598847465600).

1320313023320 is an abundant number, since it is smaller than the sum of its proper divisors (1877381907880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320313023320 is a wasteful number, since it uses less digits than its factorization.

1320313023320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95997 (or 95993 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 1320313023320 its reverse (233203130231), we get a palindrome (1553516153551).

The spelling of 1320313023320 in words is "one trillion, three hundred twenty billion, three hundred thirteen million, twenty-three thousand, three hundred twenty".