2021320284 has 12 divisors (see below), whose sum is σ = 4716414024. Its totient is φ = 673773424.

The previous prime is 2021320283. The next prime is 2021320289. The reversal of 2021320284 is 4820231202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021320283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84221667 + ... + 84221690.

It is an arithmetic number, because the mean of its divisors is an integer number (393034502).

Almost surely, 2^2021320284 is an apocalyptic number.

It is an amenable number.

2021320284 is an abundant number, since it is smaller than the sum of its proper divisors (2695093740).

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

2021320284 is a wasteful number, since it uses less digits than its factorization.

2021320284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168443364 (or 168443362 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 2021320284 is about 44959.0956759586. The cubic root of 2021320284 is about 1264.3822141341.

Adding to 2021320284 its reverse (4820231202), we get a palindrome (6841551486).

The spelling of 2021320284 in words is "two billion, twenty-one million, three hundred twenty thousand, two hundred eighty-four".