13723229247109 has 2 divisors, whose sum is σ = 13723229247110. Its totient is φ = 13723229247108.

The previous prime is 13723229247037. The next prime is 13723229247151. The reversal of 13723229247109 is 90174292232731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8016242702209 + 5706986544900 = 2831297^2 + 2388930^2 .

It is a cyclic number.

It is not a de Polignac number, because 13723229247109 - 2⁷ = 13723229246981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13723220247109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6861614623554 + 6861614623555.

It is an arithmetic number, because the mean of its divisors is an integer number (6861614623555).

Almost surely, 2^{13723229247109} is an apocalyptic number.

It is an amenable number.

13723229247109 is a deficient number, since it is larger than the sum of its proper divisors (1).

13723229247109 is an equidigital number, since it uses as much as digits as its factorization.

13723229247109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 13723229247109 in words is "thirteen trillion, seven hundred twenty-three billion, two hundred twenty-nine million, two hundred forty-seven thousand, one hundred nine".