520313223 has 16 divisors (see below), whose sum is σ = 707844096. Its totient is φ = 339884160.

The previous prime is 520313221. The next prime is 520313231. The reversal of 520313223 is 322313025.

It is not a de Polignac number, because 520313223 - 2¹ = 520313221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520313223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520313221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31615 + ... + 45167.

It is an arithmetic number, because the mean of its divisors is an integer number (44240256).

Almost surely, 2^520313223 is an apocalyptic number.

520313223 is a deficient number, since it is larger than the sum of its proper divisors (187530873).

520313223 is a wasteful number, since it uses less digits than its factorization.

520313223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13814.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 520313223 is about 22810.3753366752. The cubic root of 520313223 is about 804.3065787697.

Adding to 520313223 its reverse (322313025), we get a palindrome (842626248).

The spelling of 520313223 in words is "five hundred twenty million, three hundred thirteen thousand, two hundred twenty-three".