320501223 has 48 divisors (see below), whose sum is σ = 545965056. Its totient is φ = 177367680.

The previous prime is 320501201. The next prime is 320501227. The reversal of 320501223 is 322105023.

It is not a de Polignac number, because 320501223 - 2⁸ = 320500967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320501196 and 320501205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320501227) 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 in 47 ways as a sum of consecutive naturals, for example, 430990 + ... + 431732.

It is an arithmetic number, because the mean of its divisors is an integer number (11374272).

Almost surely, 2^320501223 is an apocalyptic number.

320501223 is a deficient number, since it is larger than the sum of its proper divisors (225463833).

320501223 is a wasteful number, since it uses less digits than its factorization.

320501223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 320501223 is about 17902.5479471499. The cubic root of 320501223 is about 684.3473087438.

Adding to 320501223 its reverse (322105023), we get a palindrome (642606246).

The spelling of 320501223 in words is "three hundred twenty million, five hundred one thousand, two hundred twenty-three".