11033321121 has 40 divisors (see below), whose sum is σ = 17078699880. Its totient is φ = 7090046208.

The previous prime is 11033321107. The next prime is 11033321161. The reversal of 11033321121 is 12112333011.

It can be written as a sum of positive squares in 4 ways, for example, as 129600 + 11033191521 = 360^2 + 105039^2 .

It is not a de Polignac number, because 11033321121 - 2²⁵ = 10999766689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11033321094 and 11033321103.

It is not an unprimeable number, because it can be changed into a prime (11033321161) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1530301 + ... + 1537493.

It is an arithmetic number, because the mean of its divisors is an integer number (426967497).

Almost surely, 2^11033321121 is an apocalyptic number.

It is an amenable number.

11033321121 is a deficient number, since it is larger than the sum of its proper divisors (6045378759).

11033321121 is an equidigital number, since it uses as much as digits as its factorization.

11033321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7887 (or 7878 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11033321121 its reverse (12112333011), we get a palindrome (23145654132).

The spelling of 11033321121 in words is "eleven billion, thirty-three million, three hundred twenty-one thousand, one hundred twenty-one".