11001133021 has 2 divisors, whose sum is σ = 11001133022. Its totient is φ = 11001133020.

The previous prime is 11001133001. The next prime is 11001133043. The reversal of 11001133021 is 12033110011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11001072996 + 60025 = 104886^2 + 245^2 .

It is a cyclic number.

It is not a de Polignac number, because 11001133021 - 2⁷ = 11001132893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11001132992 and 11001133010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11001133001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500566510 + 5500566511.

It is an arithmetic number, because the mean of its divisors is an integer number (5500566511).

Almost surely, 2^11001133021 is an apocalyptic number.

It is an amenable number.

11001133021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001133021 is an equidigital number, since it uses as much as digits as its factorization.

11001133021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11001133021 its reverse (12033110011), we get a palindrome (23034243032).

The spelling of 11001133021 in words is "eleven billion, one million, one hundred thirty-three thousand, twenty-one".