1128422443 has 2 divisors, whose sum is σ = 1128422444. Its totient is φ = 1128422442.

The previous prime is 1128422441. The next prime is 1128422489. The reversal of 1128422443 is 3442248211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1128422443 - 2¹ = 1128422441 is a prime.

Together with 1128422441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1128422441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564211221 + 564211222.

It is an arithmetic number, because the mean of its divisors is an integer number (564211222).

Almost surely, 2^1128422443 is an apocalyptic number.

1128422443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128422443 is an equidigital number, since it uses as much as digits as its factorization.

1128422443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12288, while the sum is 31.

The square root of 1128422443 is about 33591.9996874256. Note that the first 3 decimals coincide. The cubic root of 1128422443 is about 1041.0955058156.

The spelling of 1128422443 in words is "one billion, one hundred twenty-eight million, four hundred twenty-two thousand, four hundred forty-three".