13228730269 has 2 divisors, whose sum is σ = 13228730270. Its totient is φ = 13228730268.

The previous prime is 13228730239. The next prime is 13228730293. The reversal of 13228730269 is 96203782231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12277748025 + 950982244 = 110805^2 + 30838^2 .

It is a cyclic number.

It is not a de Polignac number, because 13228730269 - 2¹¹ = 13228728221 is a prime.

It is a super-2 number, since 2×13228730269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13228730239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6614365134 + 6614365135.

It is an arithmetic number, because the mean of its divisors is an integer number (6614365135).

Almost surely, 2^13228730269 is an apocalyptic number.

It is an amenable number.

13228730269 is a deficient number, since it is larger than the sum of its proper divisors (1).

13228730269 is an equidigital number, since it uses as much as digits as its factorization.

13228730269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 13228730269 in words is "thirteen billion, two hundred twenty-eight million, seven hundred thirty thousand, two hundred sixty-nine".