1100003443 has 16 divisors (see below), whose sum is σ = 1376340480. Its totient is φ = 854078400.

The previous prime is 1100003419. The next prime is 1100003447. The reversal of 1100003443 is 3443000011.

It is a de Polignac number, because none of the positive numbers 2^k-1100003443 is a prime.

It is a super-2 number, since 2×1100003443² = 2420015149223708498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100003447) 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 in 15 ways as a sum of consecutive naturals, for example, 3783 + ... + 47056.

It is an arithmetic number, because the mean of its divisors is an integer number (86021280).

Almost surely, 2^1100003443 is an apocalyptic number.

1100003443 is a deficient number, since it is larger than the sum of its proper divisors (276337037).

1100003443 is a wasteful number, since it uses less digits than its factorization.

1100003443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51138.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1100003443 is about 33166.2998086914. The cubic root of 1100003443 is about 1032.2811924675.

Adding to 1100003443 its reverse (3443000011), we get a palindrome (4543003454).

The spelling of 1100003443 in words is "one billion, one hundred million, three thousand, four hundred forty-three".