11001332121 has 32 divisors (see below), whose sum is σ = 15903000960. Its totient is φ = 6724684800.

The previous prime is 11001332117. The next prime is 11001332141. The reversal of 11001332121 is 12123310011.

It is a happy number.

11001332121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11001332121 - 2² = 11001332117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11001332121.

It is not an unprimeable number, because it can be changed into a prime (11001332141) 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 31 ways as a sum of consecutive naturals, for example, 4331670 + ... + 4334208.

It is an arithmetic number, because the mean of its divisors is an integer number (496968780).

Almost surely, 2^11001332121 is an apocalyptic number.

It is an amenable number.

11001332121 is a deficient number, since it is larger than the sum of its proper divisors (4901668839).

11001332121 is a wasteful number, since it uses less digits than its factorization.

11001332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11001332121 its reverse (12123310011), we get a palindrome (23124642132).

The spelling of 11001332121 in words is "eleven billion, one million, three hundred thirty-two thousand, one hundred twenty-one".