11051343305221 has 8 divisors (see below), whose sum is σ = 11071157393880. Its totient is φ = 11031538056192.

The previous prime is 11051343305159. The next prime is 11051343305281. The reversal of 11051343305221 is 12250334315011.

It can be written as a sum of positive squares in 4 ways, for example, as 2170645302721 + 8880698002500 = 1473311^2 + 2980050^2 .

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-11051343305221 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 (11051343305281) 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, 295285 + ... + 4710613.

It is an arithmetic number, because the mean of its divisors is an integer number (1383894674235).

Almost surely, 2^{11051343305221} is an apocalyptic number.

It is an amenable number.

11051343305221 is a deficient number, since it is larger than the sum of its proper divisors (19814088659).

11051343305221 is an equidigital number, since it uses as much as digits as its factorization.

11051343305221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4419815.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 11051343305221 in words is "eleven trillion, fifty-one billion, three hundred forty-three million, three hundred five thousand, two hundred twenty-one".