320203441 has 2 divisors, whose sum is σ = 320203442. Its totient is φ = 320203440.

The previous prime is 320203391. The next prime is 320203489. The reversal of 320203441 is 144302023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264387600 + 55815841 = 16260^2 + 7471^2 .

It is a cyclic number.

It is not a de Polignac number, because 320203441 - 2¹⁹ = 319679153 is a prime.

It is not a weakly prime, because it can be changed into another prime (320203841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160101720 + 160101721.

It is an arithmetic number, because the mean of its divisors is an integer number (160101721).

Almost surely, 2^320203441 is an apocalyptic number.

It is an amenable number.

320203441 is a deficient number, since it is larger than the sum of its proper divisors (1).

320203441 is an equidigital number, since it uses as much as digits as its factorization.

320203441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 320203441 is about 17894.2292653246. The cubic root of 320203441 is about 684.1352976377.

Adding to 320203441 its reverse (144302023), we get a palindrome (464505464).

The spelling of 320203441 in words is "three hundred twenty million, two hundred three thousand, four hundred forty-one".