11051320343621 has 8 divisors (see below), whose sum is σ = 11619816756600. Its totient is φ = 10495318357440.

The previous prime is 11051320343537. The next prime is 11051320343633. The reversal of 11051320343621 is 12634302315011.

It can be written as a sum of positive squares in 4 ways, for example, as 758708939521 + 10292611404100 = 871039^2 + 3208210^2 .

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 11051320343621 - 2²² = 11051316149317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11051320343521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3123604886 + ... + 3123608423.

It is an arithmetic number, because the mean of its divisors is an integer number (1452477094575).

Almost surely, 2^{11051320343621} is an apocalyptic number.

It is an amenable number.

11051320343621 is a deficient number, since it is larger than the sum of its proper divisors (568496412979).

11051320343621 is an equidigital number, since it uses as much as digits as its factorization.

11051320343621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6247213399.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 11051320343621 its reverse (12634302315011), we get a palindrome (23685622658632).

The spelling of 11051320343621 in words is "eleven trillion, fifty-one billion, three hundred twenty million, three hundred forty-three thousand, six hundred twenty-one".