11020121033 has 4 divisors (see below), whose sum is σ = 11317962180. Its totient is φ = 10722279888.

The previous prime is 11020121029. The next prime is 11020121039. The reversal of 11020121033 is 33012102011.

11020121033 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.

It can be written as a sum of positive squares in 2 ways, for example, as 5923303369 + 5096817664 = 76963^2 + 71392^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020121033 - 2² = 11020121029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020120999 and 11020121017.

It is not an unprimeable number, because it can be changed into a prime (11020121039) 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, 148920518 + ... + 148920591.

It is an arithmetic number, because the mean of its divisors is an integer number (2829490545).

Almost surely, 2^11020121033 is an apocalyptic number.

It is an amenable number.

11020121033 is a deficient number, since it is larger than the sum of its proper divisors (297841147).

11020121033 is an equidigital number, since it uses as much as digits as its factorization.

11020121033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297841146.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11020121033 its reverse (33012102011), we get a palindrome (44032223044).

The spelling of 11020121033 in words is "eleven billion, twenty million, one hundred twenty-one thousand, thirty-three".