11311320000121 has 8 divisors (see below), whose sum is σ = 12100162815720. Its totient is φ = 10536196190208.

The previous prime is 11311320000119. The next prime is 11311320000161. The reversal of 11311320000121 is 12100002311311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1615949440000 + 9695370560121 = 1271200^2 + 3113739^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11311320000121 - 2¹ = 11311320000119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11311320000095 and 11311320000104.

It is not an unprimeable number, because it can be changed into a prime (11311320000161) 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, 3429749716 + ... + 3429753013.

It is an arithmetic number, because the mean of its divisors is an integer number (1512520351965).

Almost surely, 2^{11311320000121} is an apocalyptic number.

It is an amenable number.

11311320000121 is a deficient number, since it is larger than the sum of its proper divisors (788842815599).

11311320000121 is an equidigital number, since it uses as much as digits as its factorization.

11311320000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6859502843.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11311320000121 its reverse (12100002311311), we get a palindrome (23411322311432).

The spelling of 11311320000121 in words is "eleven trillion, three hundred eleven billion, three hundred twenty million, one hundred twenty-one", and thus it is an aban number.