2023221330 has 48 divisors (see below), whose sum is σ = 5665023000. Its totient is φ = 498023424.

The previous prime is 2023221329. The next prime is 2023221331. The reversal of 2023221330 is 331223202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2023221329) and next prime (2023221331).

It can be written as a sum of positive squares in 4 ways, for example, as 714011841 + 1309209489 = 26721^2 + 36183^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2023221331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 863455 + ... + 865794.

Almost surely, 2^2023221330 is an apocalyptic number.

2023221330 is an abundant number, since it is smaller than the sum of its proper divisors (3641801670).

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

2023221330 is a wasteful number, since it uses less digits than its factorization.

2023221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729275 (or 1729272 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2023221330 is about 44980.2326583578. The cubic root of 2023221330 is about 1264.7784725634.

Adding to 2023221330 its reverse (331223202), we get a palindrome (2354444532).

The spelling of 2023221330 in words is "two billion, twenty-three million, two hundred twenty-one thousand, three hundred thirty".