1118105443 has 16 divisors (see below), whose sum is σ = 1378238400. Its totient is φ = 883299456.

The previous prime is 1118105441. The next prime is 1118105459. The reversal of 1118105443 is 3445018111.

It is not a de Polignac number, because 1118105443 - 2¹ = 1118105441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1118105441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52533 + ... + 70681.

It is an arithmetic number, because the mean of its divisors is an integer number (86139900).

Almost surely, 2^1118105443 is an apocalyptic number.

1118105443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1118105443 is a deficient number, since it is larger than the sum of its proper divisors (260132957).

1118105443 is a wasteful number, since it uses less digits than its factorization.

1118105443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18846.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 1118105443 is about 33438.0837220078. The cubic root of 1118105443 is about 1037.9129258352.

The spelling of 1118105443 in words is "one billion, one hundred eighteen million, one hundred five thousand, four hundred forty-three".