2021323330 has 16 divisors (see below), whose sum is σ = 3918257784. Its totient is φ = 746334720.

The previous prime is 2021323279. The next prime is 2021323333. The reversal of 2021323330 is 333231202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 590441401 + 1430881929 = 24299^2 + 37827^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2021323298 and 2021323307.

It is not an unprimeable number, because it can be changed into a prime (2021323333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7774191 + ... + 7774450.

Almost surely, 2^2021323330 is an apocalyptic number.

2021323330 is a deficient number, since it is larger than the sum of its proper divisors (1896934454).

2021323330 is a wasteful number, since it uses less digits than its factorization.

2021323330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15548661.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 2021323330 is about 44959.1295511824. The cubic root of 2021323330 is about 1264.3828492481.

Adding to 2021323330 its reverse (333231202), we get a palindrome (2354554532).

The spelling of 2021323330 in words is "two billion, twenty-one million, three hundred twenty-three thousand, three hundred thirty".