11240213 has 4 divisors (see below), whose sum is σ = 11901420. Its totient is φ = 10579008.

The previous prime is 11240209. The next prime is 11240219. The reversal of 11240213 is 31204211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7828804 + 3411409 = 2798^2 + 1847^2 .

It is a cyclic number.

It is not a de Polignac number, because 11240213 - 2² = 11240209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11240219) 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 in 3 ways as a sum of consecutive naturals, for example, 330578 + ... + 330611.

It is an arithmetic number, because the mean of its divisors is an integer number (2975355).

Almost surely, 2^11240213 is an apocalyptic number.

It is an amenable number.

11240213 is a deficient number, since it is larger than the sum of its proper divisors (661207).

11240213 is an equidigital number, since it uses as much as digits as its factorization.

11240213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661206.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 11240213 is about 3352.6426889843. The cubic root of 11240213 is about 224.0052414271.

Adding to 11240213 its reverse (31204211), we get a palindrome (42444424).

The spelling of 11240213 in words is "eleven million, two hundred forty thousand, two hundred thirteen".