11233021 has 4 divisors (see below), whose sum is σ = 11386972. Its totient is φ = 11079072.

The previous prime is 11232997. The next prime is 11233031. The reversal of 11233021 is 12033211.

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 5405625 + 5827396 = 2325^2 + 2414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11233021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11232992 and 11233010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11233031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76866 + ... + 77011.

It is an arithmetic number, because the mean of its divisors is an integer number (2846743).

Almost surely, 2^11233021 is an apocalyptic number.

It is an amenable number.

11233021 is a deficient number, since it is larger than the sum of its proper divisors (153951).

11233021 is an equidigital number, since it uses as much as digits as its factorization.

11233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153950.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 11233021 is about 3351.5699306444. The cubic root of 11233021 is about 223.9574549832.

Adding to 11233021 its reverse (12033211), we get a palindrome (23266232).

It can be divided in two parts, 112 and 33021, that added together give a palindrome (33133).

The spelling of 11233021 in words is "eleven million, two hundred thirty-three thousand, twenty-one".