520355101313 has 8 divisors (see below), whose sum is σ = 524985321600. Its totient is φ = 515725325248.

The previous prime is 520355101309. The next prime is 520355101333. The reversal of 520355101313 is 313101553025.

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 520355101313 - 2² = 520355101309 is a prime.

It is a super-3 number, since 3×520355101313³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520355101303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517548 + ... + 2716386.

It is an arithmetic number, because the mean of its divisors is an integer number (65623165200).

Almost surely, 2^520355101313 is an apocalyptic number.

It is an amenable number.

520355101313 is a deficient number, since it is larger than the sum of its proper divisors (4630220287).

520355101313 is a wasteful number, since it uses less digits than its factorization.

520355101313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222111.

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 520355101313 its reverse (313101553025), we get a palindrome (833456654338).

The spelling of 520355101313 in words is "five hundred twenty billion, three hundred fifty-five million, one hundred one thousand, three hundred thirteen".