11448491806321 has 2 divisors, whose sum is σ = 11448491806322. Its totient is φ = 11448491806320.

The previous prime is 11448491806319. The next prime is 11448491806357. The reversal of 11448491806321 is 12360819484411.

It is a happy number.

11448491806321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9360570845025 + 2087920961296 = 3059505^2 + 1444964^2 .

It is a cyclic number.

It is not a de Polignac number, because 11448491806321 - 2¹ = 11448491806319 is a prime.

Together with 11448491806319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11448491806421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5724245903160 + 5724245903161.

It is an arithmetic number, because the mean of its divisors is an integer number (5724245903161).

Almost surely, 2^{11448491806321} is an apocalyptic number.

It is an amenable number.

11448491806321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11448491806321 is an equidigital number, since it uses as much as digits as its factorization.

11448491806321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 11448491806321 in words is "eleven trillion, four hundred forty-eight billion, four hundred ninety-one million, eight hundred six thousand, three hundred twenty-one".