13223824517 has 2 divisors, whose sum is σ = 13223824518. Its totient is φ = 13223824516.

The previous prime is 13223824499. The next prime is 13223824567. The reversal of 13223824517 is 71542832231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8138565796 + 5085258721 = 90214^2 + 71311^2 .

It is a cyclic number.

It is not a de Polignac number, because 13223824517 - 2¹⁰ = 13223823493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13223824567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611912258 + 6611912259.

It is an arithmetic number, because the mean of its divisors is an integer number (6611912259).

Almost surely, 2^13223824517 is an apocalyptic number.

It is an amenable number.

13223824517 is a deficient number, since it is larger than the sum of its proper divisors (1).

13223824517 is an equidigital number, since it uses as much as digits as its factorization.

13223824517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The spelling of 13223824517 in words is "thirteen billion, two hundred twenty-three million, eight hundred twenty-four thousand, five hundred seventeen".