11133302021 has 4 divisors (see below), whose sum is σ = 11133882444. Its totient is φ = 11132721600.

The previous prime is 11133302003. The next prime is 11133302039. The reversal of 11133302021 is 12020333111.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11133302003) and next prime (11133302039).

It can be written as a sum of positive squares in 2 ways, for example, as 1405425121 + 9727876900 = 37489^2 + 98630^2 .

It is a cyclic number.

It is not a de Polignac number, because 11133302021 - 2¹⁸ = 11133039877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133302321) 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, 260420 + ... + 300141.

It is an arithmetic number, because the mean of its divisors is an integer number (2783470611).

Almost surely, 2^11133302021 is an apocalyptic number.

It is an amenable number.

11133302021 is a deficient number, since it is larger than the sum of its proper divisors (580423).

11133302021 is an equidigital number, since it uses as much as digits as its factorization.

11133302021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580422.

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

Adding to 11133302021 its reverse (12020333111), we get a palindrome (23153635132).

The spelling of 11133302021 in words is "eleven billion, one hundred thirty-three million, three hundred two thousand, twenty-one".