11233121 has 8 divisors (see below), whose sum is σ = 11658600. Its totient is φ = 10810240.

The previous prime is 11233111. The next prime is 11233133. The reversal of 11233121 is 12133211.

11233121 is digitally balanced in base 3, 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 4 ways, for example, as 474721 + 10758400 = 689^2 + 3280^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11233121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11233096 and 11233105.

It is not an unprimeable number, because it can be changed into a prime (11233111) 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 in 7 ways as a sum of consecutive naturals, for example, 14381 + ... + 15141.

It is an arithmetic number, because the mean of its divisors is an integer number (1457325).

Almost surely, 2^11233121 is an apocalyptic number.

It is an amenable number.

11233121 is a deficient number, since it is larger than the sum of its proper divisors (425479).

11233121 is an equidigital number, since it uses as much as digits as its factorization.

11233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299.

The product of its digits is 36, while the sum is 14.

The square root of 11233121 is about 3351.5848489931. The cubic root of 11233121 is about 223.9581195618.

Adding to 11233121 its reverse (12133211), we get a palindrome (23366332).

It can be divided in two parts, 112 and 33121, that added together give a palindrome (33233).

The spelling of 11233121 in words is "eleven million, two hundred thirty-three thousand, one hundred twenty-one".