11421332443 has 2 divisors, whose sum is σ = 11421332444. Its totient is φ = 11421332442.

The previous prime is 11421332441. The next prime is 11421332453. The reversal of 11421332443 is 34423312411.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11421332443 - 2¹ = 11421332441 is a prime.

Together with 11421332441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11421332441) 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, 5710666221 + 5710666222.

It is an arithmetic number, because the mean of its divisors is an integer number (5710666222).

Almost surely, 2^11421332443 is an apocalyptic number.

11421332443 is a deficient number, since it is larger than the sum of its proper divisors (1).

11421332443 is an equidigital number, since it uses as much as digits as its factorization.

11421332443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 28.

Adding to 11421332443 its reverse (34423312411), we get a palindrome (45844644854).

The spelling of 11421332443 in words is "eleven billion, four hundred twenty-one million, three hundred thirty-two thousand, four hundred forty-three".