11133032021 has 4 divisors (see below), whose sum is σ = 11151998592. Its totient is φ = 11114065452.

The previous prime is 11133032017. The next prime is 11133032051. The reversal of 11133032021 is 12023033111.

11133032021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11133032021 - 2² = 11133032017 is a prime.

It is a super-2 number, since 2×11133032021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133032051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9482405 + ... + 9483578.

It is an arithmetic number, because the mean of its divisors is an integer number (2787999648).

Almost surely, 2^11133032021 is an apocalyptic number.

It is an amenable number.

11133032021 is a deficient number, since it is larger than the sum of its proper divisors (18966571).

11133032021 is an equidigital number, since it uses as much as digits as its factorization.

11133032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18966570.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11133032021 its reverse (12023033111), we get a palindrome (23156065132).

The spelling of 11133032021 in words is "eleven billion, one hundred thirty-three million, thirty-two thousand, twenty-one".