11023420217 has 2 divisors, whose sum is σ = 11023420218. Its totient is φ = 11023420216.

The previous prime is 11023420207. The next prime is 11023420223. The reversal of 11023420217 is 71202432011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6738932281 + 4284487936 = 82091^2 + 65456^2 .

It is an emirp because it is prime and its reverse (71202432011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11023420217 - 2⁸ = 11023419961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11023420192 and 11023420201.

It is not a weakly prime, because it can be changed into another prime (11023420207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511710108 + 5511710109.

It is an arithmetic number, because the mean of its divisors is an integer number (5511710109).

Almost surely, 2^11023420217 is an apocalyptic number.

It is an amenable number.

11023420217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11023420217 is an equidigital number, since it uses as much as digits as its factorization.

11023420217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 11023420217 its reverse (71202432011), we get a palindrome (82225852228).

The spelling of 11023420217 in words is "eleven billion, twenty-three million, four hundred twenty thousand, two hundred seventeen".