320216203 has 2 divisors, whose sum is σ = 320216204. Its totient is φ = 320216202.

The previous prime is 320216201. The next prime is 320216219. The reversal of 320216203 is 302612023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320216203 - 2¹ = 320216201 is a prime.

It is a super-4 number, since 4×320216203⁴ (a number of 35 digits) contains 4444 as substring.

Together with 320216201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (320216201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160108101 + 160108102.

It is an arithmetic number, because the mean of its divisors is an integer number (160108102).

Almost surely, 2^320216203 is an apocalyptic number.

320216203 is a deficient number, since it is larger than the sum of its proper divisors (1).

320216203 is an equidigital number, since it uses as much as digits as its factorization.

320216203 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 320216203 is about 17894.5858571804. The cubic root of 320216203 is about 684.1443864622.

Adding to 320216203 its reverse (302612023), we get a palindrome (622828226).

The spelling of 320216203 in words is "three hundred twenty million, two hundred sixteen thousand, two hundred three".