2021302330321 has 2 divisors, whose sum is σ = 2021302330322. Its totient is φ = 2021302330320.

The previous prime is 2021302330297. The next prime is 2021302330357. The reversal of 2021302330321 is 1230332031202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1321672129600 + 699630200721 = 1149640^2 + 836439^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021302330321 - 2¹³ = 2021302322129 is a prime.

It is a super-2 number, since 2×2021302330321² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021302330292 and 2021302330301.

It is not a weakly prime, because it can be changed into another prime (2021302336321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010651165160 + 1010651165161.

It is an arithmetic number, because the mean of its divisors is an integer number (1010651165161).

Almost surely, 2^{2021302330321} is an apocalyptic number.

It is an amenable number.

2021302330321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021302330321 is an equidigital number, since it uses as much as digits as its factorization.

2021302330321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2021302330321 its reverse (1230332031202), we get a palindrome (3251634361523).

The spelling of 2021302330321 in words is "two trillion, twenty-one billion, three hundred two million, three hundred thirty thousand, three hundred twenty-one".