520304353111 has 8 divisors (see below), whose sum is σ = 522245735360. Its totient is φ = 518365817568.

The previous prime is 520304353097. The next prime is 520304353133. The reversal of 520304353111 is 111353403025.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520304353111 - 2⁹ = 520304352599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520304353111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520304353211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345096 + ... + 1076893.

It is an arithmetic number, because the mean of its divisors is an integer number (65280716920).

Almost surely, 2^520304353111 is an apocalyptic number.

520304353111 is a deficient number, since it is larger than the sum of its proper divisors (1941382249).

520304353111 is a wasteful number, since it uses less digits than its factorization.

520304353111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423353.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 520304353111 its reverse (111353403025), we get a palindrome (631657756136).

The spelling of 520304353111 in words is "five hundred twenty billion, three hundred four million, three hundred fifty-three thousand, one hundred eleven".