11123021033 has 2 divisors, whose sum is σ = 11123021034. Its totient is φ = 11123021032.

The previous prime is 11123021009. The next prime is 11123021047. The reversal of 11123021033 is 33012032111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11010724624 + 112296409 = 104932^2 + 10597^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123021033 - 2¹² = 11123016937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11123021083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561510516 + 5561510517.

It is an arithmetic number, because the mean of its divisors is an integer number (5561510517).

Almost surely, 2^11123021033 is an apocalyptic number.

It is an amenable number.

11123021033 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123021033 is an equidigital number, since it uses as much as digits as its factorization.

11123021033 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11123021033 its reverse (33012032111), we get a palindrome (44135053144).

The spelling of 11123021033 in words is "eleven billion, one hundred twenty-three million, twenty-one thousand, thirty-three".