2021200305 has 8 divisors (see below), whose sum is σ = 3233920512. Its totient is φ = 1077973488.

The previous prime is 2021200283. The next prime is 2021200331. The reversal of 2021200305 is 5030021202.

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

It is not a de Polignac number, because 2021200305 - 2⁷ = 2021200177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 134746687 = 2021200305 / (2 + 0 + 2 + 1 + 2 + 0 + 0 + 3 + 0 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67373329 + ... + 67373358.

It is an arithmetic number, because the mean of its divisors is an integer number (404240064).

Almost surely, 2^2021200305 is an apocalyptic number.

It is an amenable number.

2021200305 is a deficient number, since it is larger than the sum of its proper divisors (1212720207).

2021200305 is a wasteful number, since it uses less digits than its factorization.

2021200305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134746695.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2021200305 is about 44957.7613432875. The cubic root of 2021200305 is about 1264.3571971001.

Adding to 2021200305 its reverse (5030021202), we get a palindrome (7051221507).

The spelling of 2021200305 in words is "two billion, twenty-one million, two hundred thousand, three hundred five".