11323312220321 has 4 divisors (see below), whose sum is σ = 11399307604500. Its totient is φ = 11247316836144.

The previous prime is 11323312220251. The next prime is 11323312220323. The reversal of 11323312220321 is 12302221332311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1765074330721 + 9558237889600 = 1328561^2 + 3091640^2 .

It is a cyclic number.

It is not a de Polignac number, because 11323312220321 - 2³⁰ = 11322238478497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11323312220323) 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, 37997691866 + ... + 37997692163.

It is an arithmetic number, because the mean of its divisors is an integer number (2849826901125).

Almost surely, 2^{11323312220321} is an apocalyptic number.

It is an amenable number.

11323312220321 is a deficient number, since it is larger than the sum of its proper divisors (75995384179).

11323312220321 is an equidigital number, since it uses as much as digits as its factorization.

11323312220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75995384178.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 11323312220321 its reverse (12302221332311), we get a palindrome (23625533552632).

The spelling of 11323312220321 in words is "eleven trillion, three hundred twenty-three billion, three hundred twelve million, two hundred twenty thousand, three hundred twenty-one".