11306213 has 2 divisors, whose sum is σ = 11306214. Its totient is φ = 11306212.

The previous prime is 11306209. The next prime is 11306219. The reversal of 11306213 is 31260311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5769604 + 5536609 = 2402^2 + 2353^2 .

It is a cyclic number.

It is not a de Polignac number, because 11306213 - 2² = 11306209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11306191 and 11306200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11306219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5653106 + 5653107.

It is an arithmetic number, because the mean of its divisors is an integer number (5653107).

Almost surely, 2^11306213 is an apocalyptic number.

It is an amenable number.

11306213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11306213 is an equidigital number, since it uses as much as digits as its factorization.

11306213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 11306213 is about 3362.4712638177. The cubic root of 11306213 is about 224.4428221971.

Adding to 11306213 its reverse (31260311), we get a palindrome (42566524).

The spelling of 11306213 in words is "eleven million, three hundred six thousand, two hundred thirteen".