11321221332163 has 2 divisors, whose sum is σ = 11321221332164. Its totient is φ = 11321221332162.

The previous prime is 11321221332101. The next prime is 11321221332233. The reversal of 11321221332163 is 36123312212311.

11321221332163 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11321221332163 is a prime.

It is not a weakly prime, because it can be changed into another prime (11321221332263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660610666081 + 5660610666082.

It is an arithmetic number, because the mean of its divisors is an integer number (5660610666082).

Almost surely, 2^{11321221332163} is an apocalyptic number.

11321221332163 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321221332163 is an equidigital number, since it uses as much as digits as its factorization.

11321221332163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 31.

Adding to 11321221332163 its reverse (36123312212311), we get a palindrome (47444533544474).

The spelling of 11321221332163 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-one million, three hundred thirty-two thousand, one hundred sixty-three".