1003440103 has 4 divisors (see below), whose sum is σ = 1056252760. Its totient is φ = 950627448.

The previous prime is 1003440091. The next prime is 1003440121. The reversal of 1003440103 is 3010443001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3010443001 = 587 ⋅5128523.

It is a cyclic number.

It is not a de Polignac number, because 1003440103 - 2²⁵ = 969885671 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 (1003440143) 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, 26406300 + ... + 26406337.

It is an arithmetic number, because the mean of its divisors is an integer number (264063190).

Almost surely, 2^1003440103 is an apocalyptic number.

1003440103 is a deficient number, since it is larger than the sum of its proper divisors (52812657).

1003440103 is an equidigital number, since it uses as much as digits as its factorization.

1003440103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52812656.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1003440103 is about 31677.1227070894. The cubic root of 1003440103 is about 1001.1453885841.

Adding to 1003440103 its reverse (3010443001), we get a palindrome (4013883104).

The spelling of 1003440103 in words is "one billion, three million, four hundred forty thousand, one hundred three".