220206313 has 2 divisors, whose sum is σ = 220206314. Its totient is φ = 220206312.

The previous prime is 220206289. The next prime is 220206319. The reversal of 220206313 is 313602022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219988224 + 218089 = 14832^2 + 467^2 .

It is a cyclic number.

It is not a de Polignac number, because 220206313 - 2¹⁷ = 220075241 is a prime.

It is not a weakly prime, because it can be changed into another prime (220206319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110103156 + 110103157.

It is an arithmetic number, because the mean of its divisors is an integer number (110103157).

Almost surely, 2^220206313 is an apocalyptic number.

It is an amenable number.

220206313 is a deficient number, since it is larger than the sum of its proper divisors (1).

220206313 is an equidigital number, since it uses as much as digits as its factorization.

220206313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 220206313 is about 14839.3501542352. The cubic root of 220206313 is about 603.8697226809.

Adding to 220206313 its reverse (313602022), we get a palindrome (533808335).

The spelling of 220206313 in words is "two hundred twenty million, two hundred six thousand, three hundred thirteen".