1100443 has 2 divisors, whose sum is σ = 1100444. Its totient is φ = 1100442.

The previous prime is 1100441. The next prime is 1100447. The reversal of 1100443 is 3440011.

It is a weak prime.

It is an emirp because it is prime and its reverse (3440011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1100443 - 2¹ = 1100441 is a prime.

Together with 1100441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1100441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550221 + 550222.

It is an arithmetic number, because the mean of its divisors is an integer number (550222).

2^1100443 is an apocalyptic number.

1100443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100443 is an equidigital number, since it uses as much as digits as its factorization.

1100443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1100443 is about 1049.0200188748. The cubic root of 1100443 is about 103.2418672643.

Adding to 1100443 its reverse (3440011), we get a palindrome (4540454).

The spelling of 1100443 in words is "one million, one hundred thousand, four hundred forty-three".