21433220241133 has 2 divisors, whose sum is σ = 21433220241134. Its totient is φ = 21433220241132.

The previous prime is 21433220241127. The next prime is 21433220241157. The reversal of 21433220241133 is 33114202233412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11952252583209 + 9480967657924 = 3457203^2 + 3079118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21433220241133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21433220241095 and 21433220241104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21433220241533) 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, 10716610120566 + 10716610120567.

It is an arithmetic number, because the mean of its divisors is an integer number (10716610120567).

Almost surely, 2^{21433220241133} is an apocalyptic number.

It is an amenable number.

21433220241133 is a deficient number, since it is larger than the sum of its proper divisors (1).

21433220241133 is an equidigital number, since it uses as much as digits as its factorization.

21433220241133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 21433220241133 its reverse (33114202233412), we get a palindrome (54547422474545).

The spelling of 21433220241133 in words is "twenty-one trillion, four hundred thirty-three billion, two hundred twenty million, two hundred forty-one thousand, one hundred thirty-three".