2021323260 has 96 divisors (see below), whose sum is σ = 6442716672. Its totient is φ = 468709120.

The previous prime is 2021323253. The next prime is 2021323261. The reversal of 2021323260 is 623231202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021323261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51399 + ... + 81758.

It is an arithmetic number, because the mean of its divisors is an integer number (67111632).

Almost surely, 2^2021323260 is an apocalyptic number.

2021323260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021323260 is an abundant number, since it is smaller than the sum of its proper divisors (4421393412).

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

2021323260 is a wasteful number, since it uses less digits than its factorization.

2021323260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133203 (or 133201 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2021323260 is about 44959.1287726975. The cubic root of 2021323260 is about 1264.3828346526.

Adding to 2021323260 its reverse (623231202), we get a palindrome (2644554462).

The spelling of 2021323260 in words is "two billion, twenty-one million, three hundred twenty-three thousand, two hundred sixty".