13203103212217 has 2 divisors, whose sum is σ = 13203103212218. Its totient is φ = 13203103212216.

The previous prime is 13203103212199. The next prime is 13203103212253. The reversal of 13203103212217 is 71221230130231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11811484262656 + 1391618949561 = 3436784^2 + 1179669^2 .

It is a cyclic number.

It is not a de Polignac number, because 13203103212217 - 2¹¹ = 13203103210169 is a prime.

It is not a weakly prime, because it can be changed into another prime (13203103212017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6601551606108 + 6601551606109.

It is an arithmetic number, because the mean of its divisors is an integer number (6601551606109).

Almost surely, 2^{13203103212217} is an apocalyptic number.

It is an amenable number.

13203103212217 is a deficient number, since it is larger than the sum of its proper divisors (1).

13203103212217 is an equidigital number, since it uses as much as digits as its factorization.

13203103212217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 13203103212217 its reverse (71221230130231), we get a palindrome (84424333342448).

The spelling of 13203103212217 in words is "thirteen trillion, two hundred three billion, one hundred three million, two hundred twelve thousand, two hundred seventeen".