11213117 has 2 divisors, whose sum is σ = 11213118. Its totient is φ = 11213116.

The previous prime is 11213113. The next prime is 11213123. The reversal of 11213117 is 71131211.

11213117 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6911641 + 4301476 = 2629^2 + 2074^2 .

It is a cyclic number.

It is not a de Polignac number, because 11213117 - 2² = 11213113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11213095 and 11213104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11213113) 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, 5606558 + 5606559.

It is an arithmetic number, because the mean of its divisors is an integer number (5606559).

Almost surely, 2^11213117 is an apocalyptic number.

It is an amenable number.

11213117 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213117 is an equidigital number, since it uses as much as digits as its factorization.

11213117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42, while the sum is 17.

The square root of 11213117 is about 3348.5992593919. The cubic root of 11213117 is about 223.8250986431.

Adding to 11213117 its reverse (71131211), we get a palindrome (82344328).

The spelling of 11213117 in words is "eleven million, two hundred thirteen thousand, one hundred seventeen".