1121443 has 2 divisors, whose sum is σ = 1121444. Its totient is φ = 1121442.

The previous prime is 1121431. The next prime is 1121447. The reversal of 1121443 is 3441211.

It is a strong prime.

It is an emirp because it is prime and its reverse (3441211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121443 - 2¹⁷ = 990371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560721 + 560722.

It is an arithmetic number, because the mean of its divisors is an integer number (560722).

2^1121443 is an apocalyptic number.

1121443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121443 is an equidigital number, since it uses as much as digits as its factorization.

1121443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 16.

The square root of 1121443 is about 1058.9820583938. The cubic root of 1121443 is about 103.8944627121.

Adding to 1121443 its reverse (3441211), we get a palindrome (4562654).

The spelling of 1121443 in words is "one million, one hundred twenty-one thousand, four hundred forty-three".