1121441043 has 4 divisors (see below), whose sum is σ = 1495254728. Its totient is φ = 747627360.

The previous prime is 1121441039. The next prime is 1121441051. The reversal of 1121441043 is 3401441211.

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

It is not a de Polignac number, because 1121441043 - 2² = 1121441039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121441033) 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, 186906838 + ... + 186906843.

It is an arithmetic number, because the mean of its divisors is an integer number (373813682).

Almost surely, 2^1121441043 is an apocalyptic number.

1121441043 is a deficient number, since it is larger than the sum of its proper divisors (373813685).

1121441043 is an equidigital number, since it uses as much as digits as its factorization.

1121441043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373813684.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1121441043 is about 33487.9238383033. The cubic root of 1121441043 is about 1038.9440227759.

Adding to 1121441043 its reverse (3401441211), we get a palindrome (4522882254).

The spelling of 1121441043 in words is "one billion, one hundred twenty-one million, four hundred forty-one thousand, forty-three".