220021300313 has 4 divisors (see below), whose sum is σ = 220877414580. Its totient is φ = 219165186048.

The previous prime is 220021300309. The next prime is 220021300319. The reversal of 220021300313 is 313003120022.

220021300313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 214431046489 + 5590253824 = 463067^2 + 74768^2 .

It is a cyclic number.

It is not a de Polignac number, because 220021300313 - 2² = 220021300309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220021300291 and 220021300300.

It is not an unprimeable number, because it can be changed into a prime (220021300319) 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 3 ways as a sum of consecutive naturals, for example, 428056748 + ... + 428057261.

It is an arithmetic number, because the mean of its divisors is an integer number (55219353645).

Almost surely, 2^220021300313 is an apocalyptic number.

It is an amenable number.

220021300313 is a deficient number, since it is larger than the sum of its proper divisors (856114267).

220021300313 is an equidigital number, since it uses as much as digits as its factorization.

220021300313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856114266.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 220021300313 its reverse (313003120022), we get a palindrome (533024420335).

The spelling of 220021300313 in words is "two hundred twenty billion, twenty-one million, three hundred thousand, three hundred thirteen".