520341323502 has 256 divisors, whose sum is σ = 1411337281536. Its totient is φ = 123508800000.

The previous prime is 520341323497. The next prime is 520341323503. The reversal of 520341323502 is 205323143025.

It is a self number, because there is not a number n which added to its sum of digits gives 520341323502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520341323503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 272857633 + ... + 272859539.

It is an arithmetic number, because the mean of its divisors is an integer number (5513036256).

Almost surely, 2^520341323502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520341323502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705668640768).

520341323502 is an abundant number, since it is smaller than the sum of its proper divisors (890995958034).

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

520341323502 is a wasteful number, since it uses less digits than its factorization.

520341323502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 520341323502 its reverse (205323143025), we get a palindrome (725664466527).

The spelling of 520341323502 in words is "five hundred twenty billion, three hundred forty-one million, three hundred twenty-three thousand, five hundred two".