11343313320221 has 4 divisors (see below), whose sum is σ = 11345399644092. Its totient is φ = 11341226996352.

The previous prime is 11343313320139. The next prime is 11343313320253. The reversal of 11343313320221 is 12202331334311.

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 6477605272996 + 4865708047225 = 2545114^2 + 2205835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11343313320221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11343313820221) 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, 1043153780 + ... + 1043164653.

It is an arithmetic number, because the mean of its divisors is an integer number (2836349911023).

Almost surely, 2^{11343313320221} is an apocalyptic number.

It is an amenable number.

11343313320221 is a deficient number, since it is larger than the sum of its proper divisors (2086323871).

11343313320221 is an equidigital number, since it uses as much as digits as its factorization.

11343313320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086323870.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 11343313320221 its reverse (12202331334311), we get a palindrome (23545644654532).

The spelling of 11343313320221 in words is "eleven trillion, three hundred forty-three billion, three hundred thirteen million, three hundred twenty thousand, two hundred twenty-one".