1101140443 has 4 divisors (see below), whose sum is σ = 1185843568. Its totient is φ = 1016437320.

The previous prime is 1101140389. The next prime is 1101140449. The reversal of 1101140443 is 3440411011.

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 1101140443 - 2⁹ = 1101139931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101140443.

It is not an unprimeable number, because it can be changed into a prime (1101140449) 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 3 ways as a sum of consecutive naturals, for example, 42351543 + ... + 42351568.

It is an arithmetic number, because the mean of its divisors is an integer number (296460892).

Almost surely, 2^1101140443 is an apocalyptic number.

1101140443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1101140443 is a deficient number, since it is larger than the sum of its proper divisors (84703125).

1101140443 is an equidigital number, since it uses as much as digits as its factorization.

1101140443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84703124.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1101140443 is about 33183.4362747441. The cubic root of 1101140443 is about 1032.6367366743.

Adding to 1101140443 its reverse (3440411011), we get a palindrome (4541551454).

The spelling of 1101140443 in words is "one billion, one hundred one million, one hundred forty thousand, four hundred forty-three".