1003040421 has 8 divisors (see below), whose sum is σ = 1338751680. Its totient is φ = 668011392.

The previous prime is 1003040411. The next prime is 1003040449. The reversal of 1003040421 is 1240403001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1003040421 - 2⁷ = 1003040293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1003040421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003040411) 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 7 ways as a sum of consecutive naturals, for example, 167116 + ... + 173013.

It is an arithmetic number, because the mean of its divisors is an integer number (167343960).

Almost surely, 2^1003040421 is an apocalyptic number.

It is an amenable number.

1003040421 is a deficient number, since it is larger than the sum of its proper divisors (335711259).

1003040421 is an equidigital number, since it uses as much as digits as its factorization.

1003040421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341115.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1003040421 is about 31670.8133934069. The cubic root of 1003040421 is about 1001.0124482692.

Adding to 1003040421 its reverse (1240403001), we get a palindrome (2243443422).

The spelling of 1003040421 in words is "one billion, three million, forty thousand, four hundred twenty-one".