13290370217 has 2 divisors, whose sum is σ = 13290370218. Its totient is φ = 13290370216.

The previous prime is 13290370213. The next prime is 13290370231. The reversal of 13290370217 is 71207309231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11894301721 + 1396068496 = 109061^2 + 37364^2 .

It is an emirp because it is prime and its reverse (71207309231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13290370217 - 2² = 13290370213 is a prime.

It is not a weakly prime, because it can be changed into another prime (13290370213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6645185108 + 6645185109.

It is an arithmetic number, because the mean of its divisors is an integer number (6645185109).

Almost surely, 2^13290370217 is an apocalyptic number.

It is an amenable number.

13290370217 is a deficient number, since it is larger than the sum of its proper divisors (1).

13290370217 is an equidigital number, since it uses as much as digits as its factorization.

13290370217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 35.

Adding to 13290370217 its reverse (71207309231), we get a palindrome (84497679448).

The spelling of 13290370217 in words is "thirteen billion, two hundred ninety million, three hundred seventy thousand, two hundred seventeen".