11001100111121 has 8 divisors (see below), whose sum is σ = 11196826315584. Its totient is φ = 10805870045520.

The previous prime is 11001100111087. The next prime is 11001100111153. The reversal of 11001100111121 is 12111100110011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11001100111121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001100111621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123989975 + ... + 124078668.

It is an arithmetic number, because the mean of its divisors is an integer number (1399603289448).

Almost surely, 2^{11001100111121} is an apocalyptic number.

It is an amenable number.

11001100111121 is a deficient number, since it is larger than the sum of its proper divisors (195726204463).

11001100111121 is an equidigital number, since it uses as much as digits as its factorization.

11001100111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248069431.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11001100111121 its reverse (12111100110011), we get a palindrome (23112200221132).

The spelling of 11001100111121 in words is "eleven trillion, one billion, one hundred million, one hundred eleven thousand, one hundred twenty-one".