1324121523217 has 2 divisors, whose sum is σ = 1324121523218. Its totient is φ = 1324121523216.

The previous prime is 1324121523149. The next prime is 1324121523227. The reversal of 1324121523217 is 7123251214231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1232313129216 + 91808394001 = 1110096^2 + 302999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1324121523217 - 2¹¹ = 1324121521169 is a prime.

It is not a weakly prime, because it can be changed into another prime (1324121523227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662060761608 + 662060761609.

It is an arithmetic number, because the mean of its divisors is an integer number (662060761609).

Almost surely, 2^{1324121523217} is an apocalyptic number.

It is an amenable number.

1324121523217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1324121523217 is an equidigital number, since it uses as much as digits as its factorization.

1324121523217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

Adding to 1324121523217 its reverse (7123251214231), we get a palindrome (8447372737448).

The spelling of 1324121523217 in words is "one trillion, three hundred twenty-four billion, one hundred twenty-one million, five hundred twenty-three thousand, two hundred seventeen".