11213837 has 2 divisors, whose sum is σ = 11213838. Its totient is φ = 11213836.

The previous prime is 11213833. The next prime is 11213843. The reversal of 11213837 is 73831211.

11213837 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., 10023556 + 1190281 = 3166^2 + 1091^2 .

It is an emirp because it is prime and its reverse (73831211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11213837 - 2² = 11213833 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11213833) 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, 5606918 + 5606919.

It is an arithmetic number, because the mean of its divisors is an integer number (5606919).

Almost surely, 2^11213837 is an apocalyptic number.

It is an amenable number.

11213837 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213837 is an equidigital number, since it uses as much as digits as its factorization.

11213837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The square root of 11213837 is about 3348.7067653051. The cubic root of 11213837 is about 223.8298891820.

The spelling of 11213837 in words is "eleven million, two hundred thirteen thousand, eight hundred thirty-seven".