11323201121 has 8 divisors (see below), whose sum is σ = 11359463520. Its totient is φ = 11286963072.

The previous prime is 11323201091. The next prime is 11323201133. The reversal of 11323201121 is 12110232311.

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-11323201121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11323201121.

It is not an unprimeable number, because it can be changed into a prime (11323201171) 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, 1485506 + ... + 1493108.

It is an arithmetic number, because the mean of its divisors is an integer number (1419932940).

Almost surely, 2^11323201121 is an apocalyptic number.

It is an amenable number.

11323201121 is a deficient number, since it is larger than the sum of its proper divisors (36262399).

11323201121 is an equidigital number, since it uses as much as digits as its factorization.

11323201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12175.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11323201121 its reverse (12110232311), we get a palindrome (23433433432).

The spelling of 11323201121 in words is "eleven billion, three hundred twenty-three million, two hundred one thousand, one hundred twenty-one".