12783523229 has 2 divisors, whose sum is σ = 12783523230. Its totient is φ = 12783523228.

The previous prime is 12783523219. The next prime is 12783523243. The reversal of 12783523229 is 92232538721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7696552900 + 5086970329 = 87730^2 + 71323^2 .

It is an emirp because it is prime and its reverse (92232538721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12783523229 - 2⁴ = 12783523213 is a prime.

It is a super-2 number, since 2×12783523229² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12783523229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12783523219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6391761614 + 6391761615.

It is an arithmetic number, because the mean of its divisors is an integer number (6391761615).

Almost surely, 2^12783523229 is an apocalyptic number.

It is an amenable number.

12783523229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12783523229 is an equidigital number, since it uses as much as digits as its factorization.

12783523229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The spelling of 12783523229 in words is "twelve billion, seven hundred eighty-three million, five hundred twenty-three thousand, two hundred twenty-nine".