200001870020 has 12 divisors (see below), whose sum is σ = 420003927084. Its totient is φ = 80000748000.

The previous prime is 200001869999. The next prime is 200001870071. The reversal of 200001870020 is 20078100002.

It can be written as a sum of positive squares in 2 ways, for example, as 150724085824 + 49277784196 = 388232^2 + 221986^2 .

It is a super-2 number, since 2×200001870020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 10000093501 = 200001870020 / (2 + 0 + 0 + 0 + 0 + 1 + 8 + 7 + 0 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 200001869974 and 200001870001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000046731 + ... + 5000046770.

It is an arithmetic number, because the mean of its divisors is an integer number (35000327257).

Almost surely, 2^200001870020 is an apocalyptic number.

200001870020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200001870020 is an abundant number, since it is smaller than the sum of its proper divisors (220002057064).

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

200001870020 is a wasteful number, since it uses less digits than its factorization.

200001870020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000093510 (or 10000093508 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 200001870020 its reverse (20078100002), we get a palindrome (220079970022).

The spelling of 200001870020 in words is "two hundred billion, one million, eight hundred seventy thousand, twenty".