11122342789 has 2 divisors, whose sum is σ = 11122342790. Its totient is φ = 11122342788.

The previous prime is 11122342787. The next prime is 11122342807. The reversal of 11122342789 is 98724322111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9128273764 + 1994069025 = 95542^2 + 44655^2 .

It is an emirp because it is prime and its reverse (98724322111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11122342789 - 2¹ = 11122342787 is a prime.

Together with 11122342787, 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 (11122342787) 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, 5561171394 + 5561171395.

It is an arithmetic number, because the mean of its divisors is an integer number (5561171395).

Almost surely, 2^11122342789 is an apocalyptic number.

It is an amenable number.

11122342789 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122342789 is an equidigital number, since it uses as much as digits as its factorization.

11122342789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The spelling of 11122342789 in words is "eleven billion, one hundred twenty-two million, three hundred forty-two thousand, seven hundred eighty-nine".