520202020100 has 72 divisors (see below), whose sum is σ = 1301518030848. Its totient is φ = 176776588800.

The previous prime is 520202020081. The next prime is 520202020111. The reversal of 520202020100 is 1020202025.

It is a super-2 number, since 2×520202020100² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3209156 + ... + 3367355.

Almost surely, 2^520202020100 is an apocalyptic number.

520202020100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

520202020100 is an abundant number, since it is smaller than the sum of its proper divisors (781316010748).

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

520202020100 is a wasteful number, since it uses less digits than its factorization.

520202020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6576645 (or 6576638 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

Adding to 520202020100 its reverse (1020202025), we get a palindrome (521222222125).

The spelling of 520202020100 in words is "five hundred twenty billion, two hundred two million, twenty thousand, one hundred".