11121236 has 36 divisors (see below), whose sum is σ = 23633568. Its totient is φ = 4557168.

The previous prime is 11121223. The next prime is 11121307. The reversal of 11121236 is 63212111.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3275 + ... + 5741.

It is an arithmetic number, because the mean of its divisors is an integer number (656488).

Almost surely, 2^11121236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11121236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11816784).

11121236 is an abundant number, since it is smaller than the sum of its proper divisors (12512332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11121236 is a wasteful number, since it uses less digits than its factorization.

11121236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508 (or 2499 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 11121236 is about 3334.8517208416. The cubic root of 11121236 is about 223.2120754591.

Adding to 11121236 its reverse (63212111), we get a palindrome (74333347).

The spelling of 11121236 in words is "eleven million, one hundred twenty-one thousand, two hundred thirty-six".