2000303021 has 4 divisors (see below), whose sum is σ = 2000447772. Its totient is φ = 2000158272.

The previous prime is 2000303009. The next prime is 2000303029. The reversal of 2000303021 is 1203030002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1063086025 + 937216996 = 32605^2 + 30614^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000303021 - 2²² = 1996108717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000302993 and 2000303011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000303029) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 49166 + ... + 80111.

It is an arithmetic number, because the mean of its divisors is an integer number (500111943).

Almost surely, 2^2000303021 is an apocalyptic number.

It is an amenable number.

2000303021 is a deficient number, since it is larger than the sum of its proper divisors (144751).

2000303021 is a wasteful number, since it uses less digits than its factorization.

2000303021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144750.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 2000303021 is about 44724.7472994538. The cubic root of 2000303021 is about 1259.9846771043.

Adding to 2000303021 its reverse (1203030002), we get a palindrome (3203333023).

The spelling of 2000303021 in words is "two billion, three hundred three thousand, twenty-one".