1111143443 has 12 divisors (see below), whose sum is σ = 1183116600. Its totient is φ = 1043331072.

The previous prime is 1111143431. The next prime is 1111143457. The reversal of 1111143443 is 3443411111.

It is not a de Polignac number, because 1111143443 - 2¹⁶ = 1111077907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111143043) 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 11 ways as a sum of consecutive naturals, for example, 125480 + ... + 134042.

It is an arithmetic number, because the mean of its divisors is an integer number (98593050).

Almost surely, 2^1111143443 is an apocalyptic number.

1111143443 is a deficient number, since it is larger than the sum of its proper divisors (71973157).

1111143443 is an equidigital number, since it uses as much as digits as its factorization.

1111143443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9046 (or 9029 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 1111143443 is about 33333.8183081387. The cubic root of 1111143443 is about 1035.7542148235.

Adding to 1111143443 its reverse (3443411111), we get a palindrome (4554554554).

The spelling of 1111143443 in words is "one billion, one hundred eleven million, one hundred forty-three thousand, four hundred forty-three".