520103512240 has 160 divisors (see below), whose sum is σ = 1308091276800. Its totient is φ = 191180390400.

The previous prime is 520103512213. The next prime is 520103512241. The reversal of 520103512240 is 42215301025.

It is not an unprimeable number, because it can be changed into a prime (520103512241) 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 31 ways as a sum of consecutive naturals, for example, 295680481 + ... + 295682239.

It is an arithmetic number, because the mean of its divisors is an integer number (8175570480).

Almost surely, 2^520103512240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520103512240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654045638400).

520103512240 is an abundant number, since it is smaller than the sum of its proper divisors (787987764560).

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

520103512240 is a wasteful number, since it uses less digits than its factorization.

520103512240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895 (or 2889 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 520103512240 its reverse (42215301025), we get a palindrome (562318813265).

The spelling of 520103512240 in words is "five hundred twenty billion, one hundred three million, five hundred twelve thousand, two hundred forty".