2021020330 has 64 divisors (see below), whose sum is σ = 4229153280. Its totient is φ = 681053184.

The previous prime is 2021020273. The next prime is 2021020381. The reversal of 2021020330 is 330201202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021020330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2089507 + ... + 2090473.

It is an arithmetic number, because the mean of its divisors is an integer number (66080520).

Almost surely, 2^2021020330 is an apocalyptic number.

2021020330 is an abundant number, since it is smaller than the sum of its proper divisors (2208132950).

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

2021020330 is a wasteful number, since it uses less digits than its factorization.

2021020330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2021020330 is about 44955.7596977295. The cubic root of 2021020330 is about 1264.3196683372.

Adding to 2021020330 its reverse (330201202), we get a palindrome (2351221532).

The spelling of 2021020330 in words is "two billion, twenty-one million, twenty thousand, three hundred thirty".