1111044043 has 4 divisors (see below), whose sum is σ = 1111153968. Its totient is φ = 1110934120.

The previous prime is 1111044041. The next prime is 1111044047. The reversal of 1111044043 is 3404401111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3404401111 = 43403 ⋅78437.

It is a cyclic number.

It is not a de Polignac number, because 1111044043 - 2¹ = 1111044041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111044043.

It is not an unprimeable number, because it can be changed into a prime (1111044041) 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, 38071 + ... + 60592.

It is an arithmetic number, because the mean of its divisors is an integer number (277788492).

Almost surely, 2^1111044043 is an apocalyptic number.

1111044043 is a deficient number, since it is larger than the sum of its proper divisors (109925).

1111044043 is an equidigital number, since it uses as much as digits as its factorization.

1111044043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109924.

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

The square root of 1111044043 is about 33332.3272964850. The cubic root of 1111044043 is about 1035.7233286105.

Adding to 1111044043 its reverse (3404401111), we get a palindrome (4515445154).

The spelling of 1111044043 in words is "one billion, one hundred eleven million, forty-four thousand, forty-three".