320000220313 has 4 divisors (see below), whose sum is σ = 323168539428. Its totient is φ = 316831901200.

The previous prime is 320000220299. The next prime is 320000220361. The reversal of 320000220313 is 313022000023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 152859886729 + 167140333584 = 390973^2 + 408828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320000220313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320000220373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1584159406 + ... + 1584159607.

It is an arithmetic number, because the mean of its divisors is an integer number (80792134857).

Almost surely, 2^320000220313 is an apocalyptic number.

It is an amenable number.

320000220313 is a deficient number, since it is larger than the sum of its proper divisors (3168319115).

320000220313 is a wasteful number, since it uses less digits than its factorization.

320000220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168319114.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 320000220313 its reverse (313022000023), we get a palindrome (633022220336).

The spelling of 320000220313 in words is "three hundred twenty billion, two hundred twenty thousand, three hundred thirteen".