320020311203 has 2 divisors, whose sum is σ = 320020311204. Its totient is φ = 320020311202.

The previous prime is 320020311199. The next prime is 320020311241. The reversal of 320020311203 is 302113020023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320020311203 - 2² = 320020311199 is a prime.

It is not a weakly prime, because it can be changed into another prime (320020311253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160010155601 + 160010155602.

It is an arithmetic number, because the mean of its divisors is an integer number (160010155602).

Almost surely, 2^320020311203 is an apocalyptic number.

320020311203 is a deficient number, since it is larger than the sum of its proper divisors (1).

320020311203 is an equidigital number, since it uses as much as digits as its factorization.

320020311203 is an odious number, because the sum of its binary digits is odd.

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

Adding to 320020311203 its reverse (302113020023), we get a palindrome (622133331226).

The spelling of 320020311203 in words is "three hundred twenty billion, twenty million, three hundred eleven thousand, two hundred three".