11231310217 has 2 divisors, whose sum is σ = 11231310218. Its totient is φ = 11231310216.

The previous prime is 11231310203. The next prime is 11231310221. The reversal of 11231310217 is 71201313211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10390948096 + 840362121 = 101936^2 + 28989^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231310217 - 2⁷ = 11231310089 is a prime.

It is a super-2 number, since 2×11231310217² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11231310257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615655108 + 5615655109.

It is an arithmetic number, because the mean of its divisors is an integer number (5615655109).

Almost surely, 2^11231310217 is an apocalyptic number.

It is an amenable number.

11231310217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231310217 is an equidigital number, since it uses as much as digits as its factorization.

11231310217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

Adding to 11231310217 its reverse (71201313211), we get a palindrome (82432623428).

The spelling of 11231310217 in words is "eleven billion, two hundred thirty-one million, three hundred ten thousand, two hundred seventeen".