1111123443 has 4 divisors (see below), whose sum is σ = 1481497928. Its totient is φ = 740748960.

The previous prime is 1111123441. The next prime is 1111123469. The reversal of 1111123443 is 3443211111.

1111123443 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1111123443 - 2¹ = 1111123441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111123441) 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, 185187238 + ... + 185187243.

It is an arithmetic number, because the mean of its divisors is an integer number (370374482).

Almost surely, 2^1111123443 is an apocalyptic number.

1111123443 is a deficient number, since it is larger than the sum of its proper divisors (370374485).

1111123443 is an equidigital number, since it uses as much as digits as its factorization.

1111123443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370374484.

The product of its digits is 288, while the sum is 21.

The square root of 1111123443 is about 33333.5183111534. The cubic root of 1111123443 is about 1035.7480004417.

Adding to 1111123443 its reverse (3443211111), we get a palindrome (4554334554).

The spelling of 1111123443 in words is "one billion, one hundred eleven million, one hundred twenty-three thousand, four hundred forty-three".