11132332391821 has 2 divisors, whose sum is σ = 11132332391822. Its totient is φ = 11132332391820.

The previous prime is 11132332391819. The next prime is 11132332391879. The reversal of 11132332391821 is 12819323323111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7188887064100 + 3943445327721 = 2681210^2 + 1985811^2 .

It is a cyclic number.

It is not a de Polignac number, because 11132332391821 - 2¹ = 11132332391819 is a prime.

Together with 11132332391819, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11132332391321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5566166195910 + 5566166195911.

It is an arithmetic number, because the mean of its divisors is an integer number (5566166195911).

Almost surely, 2^{11132332391821} is an apocalyptic number.

It is an amenable number.

11132332391821 is a deficient number, since it is larger than the sum of its proper divisors (1).

11132332391821 is an equidigital number, since it uses as much as digits as its factorization.

11132332391821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The spelling of 11132332391821 in words is "eleven trillion, one hundred thirty-two billion, three hundred thirty-two million, three hundred ninety-one thousand, eight hundred twenty-one".