1100424443 has 4 divisors (see below), whose sum is σ = 1148269008. Its totient is φ = 1052579880.

The previous prime is 1100424431. The next prime is 1100424449. The reversal of 1100424443 is 3444240011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1100424443 - 2⁴ = 1100424427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 47844541 = 1100424443 / (1 + 1 + 0 + 0 + 4 + 2 + 4 + 4 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100424449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23922248 + ... + 23922293.

It is an arithmetic number, because the mean of its divisors is an integer number (287067252).

Almost surely, 2^1100424443 is an apocalyptic number.

1100424443 is a deficient number, since it is larger than the sum of its proper divisors (47844565).

1100424443 is an equidigital number, since it uses as much as digits as its factorization.

1100424443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47844564.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1100424443 is about 33172.6460054063. The cubic root of 1100424443 is about 1032.4128693132.

Adding to 1100424443 its reverse (3444240011), we get a palindrome (4544664454).

The spelling of 1100424443 in words is "one billion, one hundred million, four hundred twenty-four thousand, four hundred forty-three".