2021303312 has 60 divisors (see below), whose sum is σ = 4600080576. Its totient is φ = 857828160.

The previous prime is 2021303311. The next prime is 2021303341. The reversal of 2021303312 is 2133031202.

It is not an unprimeable number, because it can be changed into a prime (2021303311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68237 + ... + 93267.

Almost surely, 2^2021303312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021303312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2300040288).

2021303312 is an abundant number, since it is smaller than the sum of its proper divisors (2578777264).

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

2021303312 is a wasteful number, since it uses less digits than its factorization.

2021303312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25156 (or 25143 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2021303312 is about 44958.9069262143. The cubic root of 2021303312 is about 1264.3786753324.

Adding to 2021303312 its reverse (2133031202), we get a palindrome (4154334514).

The spelling of 2021303312 in words is "two billion, twenty-one million, three hundred three thousand, three hundred twelve".