520313112 has 64 divisors (see below), whose sum is σ = 1576713600. Its totient is φ = 157669920.

The previous prime is 520313111. The next prime is 520313147. The reversal of 520313112 is 211313025.

520313112 is a `hidden beast` number, since 520 + 3 + 131 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520313111) 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 in 15 ways as a sum of consecutive naturals, for example, 107118 + ... + 111869.

It is an arithmetic number, because the mean of its divisors is an integer number (24636150).

Almost surely, 2^520313112 is an apocalyptic number.

It is an amenable number.

520313112 is an abundant number, since it is smaller than the sum of its proper divisors (1056400488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520313112 is a wasteful number, since it uses less digits than its factorization.

520313112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219013 (or 219003 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 520313112 is about 22810.3729035717. The cubic root of 520313112 is about 804.3065215746.

Adding to 520313112 its reverse (211313025), we get a palindrome (731626137).

The spelling of 520313112 in words is "five hundred twenty million, three hundred thirteen thousand, one hundred twelve".