21303032244269 has 2 divisors, whose sum is σ = 21303032244270. Its totient is φ = 21303032244268.

The previous prime is 21303032244217. The next prime is 21303032244401. The reversal of 21303032244269 is 96244223030312.

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., 18154944983044 + 3148087261225 = 4260862^2 + 1774285^2 .

It is a cyclic number.

It is not a de Polignac number, because 21303032244269 - 2⁴⁰ = 20203520616493 is a prime.

It is a super-2 number, since 2×21303032244269² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21303032241269) 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, 10651516122134 + 10651516122135.

It is an arithmetic number, because the mean of its divisors is an integer number (10651516122135).

Almost surely, 2^{21303032244269} is an apocalyptic number.

It is an amenable number.

21303032244269 is a deficient number, since it is larger than the sum of its proper divisors (1).

21303032244269 is an equidigital number, since it uses as much as digits as its factorization.

21303032244269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 41.

The spelling of 21303032244269 in words is "twenty-one trillion, three hundred three billion, thirty-two million, two hundred forty-four thousand, two hundred sixty-nine".