11320315241221 has 32 divisors (see below), whose sum is σ = 13194226287360. Its totient is φ = 9512565504000.

The previous prime is 11320315241219. The next prime is 11320315241281. The reversal of 11320315241221 is 12214251302311.

It is a cyclic number.

It is not a de Polignac number, because 11320315241221 - 2¹ = 11320315241219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11320315241221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320315241281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157389615 + ... + 157461523.

It is an arithmetic number, because the mean of its divisors is an integer number (412319571480).

Almost surely, 2^{11320315241221} is an apocalyptic number.

It is an amenable number.

11320315241221 is a deficient number, since it is larger than the sum of its proper divisors (1873911046139).

11320315241221 is a wasteful number, since it uses less digits than its factorization.

11320315241221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74205.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 11320315241221 its reverse (12214251302311), we get a palindrome (23534566543532).

The spelling of 11320315241221 in words is "eleven trillion, three hundred twenty billion, three hundred fifteen million, two hundred forty-one thousand, two hundred twenty-one".