21302223012331 has 2 divisors, whose sum is σ = 21302223012332. Its totient is φ = 21302223012330.

The previous prime is 21302223012241. The next prime is 21302223012379. The reversal of 21302223012331 is 13321032220312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21302223012331 - 2¹⁵ = 21302222979563 is a prime.

It is a super-2 number, since 2×21302223012331² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21302223012296 and 21302223012305.

It is not a weakly prime, because it can be changed into another prime (21302223012391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651111506165 + 10651111506166.

It is an arithmetic number, because the mean of its divisors is an integer number (10651111506166).

Almost surely, 2^{21302223012331} is an apocalyptic number.

21302223012331 is a deficient number, since it is larger than the sum of its proper divisors (1).

21302223012331 is an equidigital number, since it uses as much as digits as its factorization.

21302223012331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21302223012331 its reverse (13321032220312), we get a palindrome (34623255232643).

The spelling of 21302223012331 in words is "twenty-one trillion, three hundred two billion, two hundred twenty-three million, twelve thousand, three hundred thirty-one".