100000010020 has 48 divisors (see below), whose sum is σ = 211821649200. Its totient is φ = 39654360576.

The previous prime is 100000009997. The next prime is 100000010039. The reversal of 100000010020 is 20010000001.

It can be written as a sum of positive squares in 8 ways, for example, as 15821111524 + 84178898496 = 125782^2 + 290136^2 .

It is a Harshad number since it is a multiple of its sum of digits (4).

It is a junction number, because it is equal to n+sod(n) for n = 100000009991 and 100000010009.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1166134 + ... + 1248946.

It is an arithmetic number, because the mean of its divisors is an integer number (4412951025).

Almost surely, 2^100000010020 is an apocalyptic number.

100000010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100000010020 is an abundant number, since it is smaller than the sum of its proper divisors (111821639180).

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

100000010020 is a wasteful number, since it uses less digits than its factorization.

100000010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83344 (or 83342 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

Adding to 100000010020 its reverse (20010000001), we get a palindrome (120010010021).

The spelling of 100000010020 in words is "one hundred billion, ten thousand, twenty".