20000102020 has 24 divisors (see below), whose sum is σ = 42712084800. Its totient is φ = 7864446432.

The previous prime is 20000101991. The next prime is 20000102027. The reversal of 20000102020 is 2020100002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20000101994 and 20000102012.

It is not an unprimeable number, because it can be changed into a prime (20000102027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8473440 + ... + 8475799.

It is an arithmetic number, because the mean of its divisors is an integer number (1779670200).

Almost surely, 2^20000102020 is an apocalyptic number.

20000102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000102020 is an abundant number, since it is smaller than the sum of its proper divisors (22711982780).

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

20000102020 is a wasteful number, since it uses less digits than its factorization.

20000102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16949307 (or 16949305 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 20000102020 its reverse (2020100002), we get a palindrome (22020202022).

The spelling of 20000102020 in words is "twenty billion, one hundred two thousand, twenty".