21000232441333 has 2 divisors, whose sum is σ = 21000232441334. Its totient is φ = 21000232441332.

The previous prime is 21000232441301. The next prime is 21000232441403. The reversal of 21000232441333 is 33314423200012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20950375356964 + 49857084369 = 4577158^2 + 223287^2 .

It is a cyclic number.

It is not a de Polignac number, because 21000232441333 - 2⁵ = 21000232441301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21000232447333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10500116220666 + 10500116220667.

It is an arithmetic number, because the mean of its divisors is an integer number (10500116220667).

Almost surely, 2^{21000232441333} is an apocalyptic number.

It is an amenable number.

21000232441333 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000232441333 is an equidigital number, since it uses as much as digits as its factorization.

21000232441333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 21000232441333 its reverse (33314423200012), we get a palindrome (54314655641345).

The spelling of 21000232441333 in words is "twenty-one trillion, two hundred thirty-two million, four hundred forty-one thousand, three hundred thirty-three".