1003344421 has 4 divisors (see below), whose sum is σ = 1015432992. Its totient is φ = 991255852.

The previous prime is 1003344389. The next prime is 1003344439. The reversal of 1003344421 is 1244433001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1003344421 - 2⁵ = 1003344389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003344392 and 1003344401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003344491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6044161 + ... + 6044326.

It is an arithmetic number, because the mean of its divisors is an integer number (253858248).

Almost surely, 2^1003344421 is an apocalyptic number.

It is an amenable number.

1003344421 is a deficient number, since it is larger than the sum of its proper divisors (12088571).

1003344421 is an equidigital number, since it uses as much as digits as its factorization.

1003344421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12088570.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1003344421 is about 31675.6124013412. The cubic root of 1003344421 is about 1001.1135665093.

Adding to 1003344421 its reverse (1244433001), we get a palindrome (2247777422).

The spelling of 1003344421 in words is "one billion, three million, three hundred forty-four thousand, four hundred twenty-one".