11121237 has 12 divisors (see below), whose sum is σ = 16093740. Its totient is φ = 7400448.

The previous prime is 11121223. The next prime is 11121307. The reversal of 11121237 is 73212111.

It is a happy number.

11121237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3944196 + 7177041 = 1986^2 + 2679^2 .

It is not a de Polignac number, because 11121237 - 2⁸ = 11120981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7189 + ... + 8597.

It is an arithmetic number, because the mean of its divisors is an integer number (1341145).

Almost surely, 2^11121237 is an apocalyptic number.

It is an amenable number.

11121237 is a deficient number, since it is larger than the sum of its proper divisors (4972503).

11121237 is a wasteful number, since it uses less digits than its factorization.

11121237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292 (or 2289 counting only the distinct ones).

The product of its digits is 84, while the sum is 18.

The square root of 11121237 is about 3334.8518707733. The cubic root of 11121237 is about 223.2120821494.

Adding to 11121237 its reverse (73212111), we get a palindrome (84333348).

The spelling of 11121237 in words is "eleven million, one hundred twenty-one thousand, two hundred thirty-seven".