1103042443043 has 4 divisors (see below), whose sum is σ = 1103044905888. Its totient is φ = 1103039980200.

The previous prime is 1103042443033. The next prime is 1103042443049. The reversal of 1103042443043 is 3403442403011.

It is a happy number.

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 1103042443043 - 2¹⁸ = 1103042180899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103042442997 and 1103042443015.

It is not an unprimeable number, because it can be changed into a prime (1103042443049) 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, 348683 + ... + 1525668.

It is an arithmetic number, because the mean of its divisors is an integer number (275761226472).

Almost surely, 2^{1103042443043} is an apocalyptic number.

1103042443043 is a deficient number, since it is larger than the sum of its proper divisors (2462845).

1103042443043 is an equidigital number, since it uses as much as digits as its factorization.

1103042443043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462844.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1103042443043 its reverse (3403442403011), we get a palindrome (4506484846054).

The spelling of 1103042443043 in words is "one trillion, one hundred three billion, forty-two million, four hundred forty-three thousand, forty-three".