13503232217 has 2 divisors, whose sum is σ = 13503232218. Its totient is φ = 13503232216.

The previous prime is 13503232187. The next prime is 13503232231. The reversal of 13503232217 is 71223230531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7931505481 + 5571726736 = 89059^2 + 74644^2 .

It is a cyclic number.

It is not a de Polignac number, because 13503232217 - 2⁶ = 13503232153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13503232217.

It is not a weakly prime, because it can be changed into another prime (13503262217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6751616108 + 6751616109.

It is an arithmetic number, because the mean of its divisors is an integer number (6751616109).

Almost surely, 2^13503232217 is an apocalyptic number.

It is an amenable number.

13503232217 is a deficient number, since it is larger than the sum of its proper divisors (1).

13503232217 is an equidigital number, since it uses as much as digits as its factorization.

13503232217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 29.

Adding to 13503232217 its reverse (71223230531), we get a palindrome (84726462748).

The spelling of 13503232217 in words is "thirteen billion, five hundred three million, two hundred thirty-two thousand, two hundred seventeen".