11044372611521 has 2 divisors, whose sum is σ = 11044372611522. Its totient is φ = 11044372611520.

The previous prime is 11044372611457. The next prime is 11044372611583. The reversal of 11044372611521 is 12511627344011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11010212330896 + 34160280625 = 3318164^2 + 184825^2 .

It is a cyclic number.

It is not a de Polignac number, because 11044372611521 - 2⁶ = 11044372611457 is a prime.

It is not a weakly prime, because it can be changed into another prime (11044372617521) 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 as a sum of consecutive naturals, namely, 5522186305760 + 5522186305761.

It is an arithmetic number, because the mean of its divisors is an integer number (5522186305761).

Almost surely, 2^{11044372611521} is an apocalyptic number.

It is an amenable number.

11044372611521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11044372611521 is an equidigital number, since it uses as much as digits as its factorization.

11044372611521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

Adding to 11044372611521 its reverse (12511627344011), we get a palindrome (23555999955532).

The spelling of 11044372611521 in words is "eleven trillion, forty-four billion, three hundred seventy-two million, six hundred eleven thousand, five hundred twenty-one".