520424343101 has 16 divisors (see below), whose sum is σ = 607898834928. Its totient is φ = 441105715200.

The previous prime is 520424343097. The next prime is 520424343107. The reversal of 520424343101 is 101343424025.

It can be written as a sum of positive squares in 8 ways, for example, as 172291876 + 520252051225 = 13126^2 + 721285^2 .

It is a cyclic number.

It is not a de Polignac number, because 520424343101 - 2² = 520424343097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520424343107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28708760 + ... + 28726881.

It is an arithmetic number, because the mean of its divisors is an integer number (37993677183).

Almost surely, 2^520424343101 is an apocalyptic number.

It is an amenable number.

520424343101 is a deficient number, since it is larger than the sum of its proper divisors (87474491827).

520424343101 is a wasteful number, since it uses less digits than its factorization.

520424343101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57435712.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 520424343101 its reverse (101343424025), we get a palindrome (621767767126).

The spelling of 520424343101 in words is "five hundred twenty billion, four hundred twenty-four million, three hundred forty-three thousand, one hundred one".