11001303121 has 16 divisors (see below), whose sum is σ = 11715974784. Its totient is φ = 10307000704.

The previous prime is 11001303097. The next prime is 11001303163. The reversal of 11001303121 is 12130310011.

It is a cyclic number.

It is not a de Polignac number, because 11001303121 - 2²⁷ = 10867085393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11001303191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744810 + ... + 759436.

It is an arithmetic number, because the mean of its divisors is an integer number (732248424).

Almost surely, 2^11001303121 is an apocalyptic number.

It is an amenable number.

11001303121 is a deficient number, since it is larger than the sum of its proper divisors (714671663).

11001303121 is a wasteful number, since it uses less digits than its factorization.

11001303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15320.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11001303121 its reverse (12130310011), we get a palindrome (23131613132).

The spelling of 11001303121 in words is "eleven billion, one million, three hundred three thousand, one hundred twenty-one".