11201134123121 has 4 divisors (see below), whose sum is σ = 11201929276992. Its totient is φ = 11200338969252.

The previous prime is 11201134123117. The next prime is 11201134123171. The reversal of 11201134123121 is 12132143110211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11201134123121 - 2² = 11201134123117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201134123171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397555805 + ... + 397583978.

It is an arithmetic number, because the mean of its divisors is an integer number (2800482319248).

Almost surely, 2^{11201134123121} is an apocalyptic number.

It is an amenable number.

11201134123121 is a deficient number, since it is larger than the sum of its proper divisors (795153871).

11201134123121 is an equidigital number, since it uses as much as digits as its factorization.

11201134123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795153870.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 11201134123121 its reverse (12132143110211), we get a palindrome (23333277233332).

The spelling of 11201134123121 in words is "eleven trillion, two hundred one billion, one hundred thirty-four million, one hundred twenty-three thousand, one hundred twenty-one".