11133332021 has 4 divisors (see below), whose sum is σ = 12723808032. Its totient is φ = 9542856012.

The previous prime is 11133332009. The next prime is 11133332027. The reversal of 11133332021 is 12023333111.

11133332021 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 a de Polignac number, because none of the positive numbers 2^k-11133332021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11133331984 and 11133332002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133332027) 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, 795237995 + ... + 795238008.

It is an arithmetic number, because the mean of its divisors is an integer number (3180952008).

Almost surely, 2^11133332021 is an apocalyptic number.

It is an amenable number.

11133332021 is a deficient number, since it is larger than the sum of its proper divisors (1590476011).

11133332021 is an equidigital number, since it uses as much as digits as its factorization.

11133332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590476010.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11133332021 its reverse (12023333111), we get a palindrome (23156665132).

The spelling of 11133332021 in words is "eleven billion, one hundred thirty-three million, three hundred thirty-two thousand, twenty-one".