11133332621 has 2 divisors, whose sum is σ = 11133332622. Its totient is φ = 11133332620.

The previous prime is 11133332603. The next prime is 11133332633. The reversal of 11133332621 is 12623333111.

11133332621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10647350596 + 485982025 = 103186^2 + 22045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11133332621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11133331621) 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 as a sum of consecutive naturals, namely, 5566666310 + 5566666311.

It is an arithmetic number, because the mean of its divisors is an integer number (5566666311).

Almost surely, 2^11133332621 is an apocalyptic number.

It is an amenable number.

11133332621 is a deficient number, since it is larger than the sum of its proper divisors (1).

11133332621 is an equidigital number, since it uses as much as digits as its factorization.

11133332621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 26.

Adding to 11133332621 its reverse (12623333111), we get a palindrome (23756665732).

The spelling of 11133332621 in words is "eleven billion, one hundred thirty-three million, three hundred thirty-two thousand, six hundred twenty-one".