520202020101 has 8 divisors (see below), whose sum is σ = 693661635264. Its totient is φ = 346771875840.

The previous prime is 520202020081. The next prime is 520202020111. The reversal of 520202020101 is 101020202025.

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

It is not a de Polignac number, because 520202020101 - 2³¹ = 518054536453 is a prime.

It is a super-2 number, since 2×520202020101² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520202020111) 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, 7326505 + ... + 7397166.

It is an arithmetic number, because the mean of its divisors is an integer number (86707704408).

Almost surely, 2^520202020101 is an apocalyptic number.

It is an amenable number.

520202020101 is a deficient number, since it is larger than the sum of its proper divisors (173459615163).

520202020101 is a wasteful number, since it uses less digits than its factorization.

520202020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14735451.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 520202020101 its reverse (101020202025), we get a palindrome (621222222126).

The spelling of 520202020101 in words is "five hundred twenty billion, two hundred two million, twenty thousand, one hundred one".