1003001421 has 8 divisors (see below), whose sum is σ = 1337715360. Its totient is φ = 668477552.

The previous prime is 1003001413. The next prime is 1003001473. The reversal of 1003001421 is 1241003001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1003001421 - 2³ = 1003001413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1003001397 and 1003001406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003001821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34710 + ... + 56663.

It is an arithmetic number, because the mean of its divisors is an integer number (167214420).

Almost surely, 2^1003001421 is an apocalyptic number.

It is an amenable number.

1003001421 is a deficient number, since it is larger than the sum of its proper divisors (334713939).

1003001421 is an equidigital number, since it uses as much as digits as its factorization.

1003001421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95035.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1003001421 is about 31670.1976785747. The cubic root of 1003001421 is about 1000.9994743848. Note that the first 3 decimals are identical.

Adding to 1003001421 its reverse (1241003001), we get a palindrome (2244004422).

The spelling of 1003001421 in words is "one billion, three million, one thousand, four hundred twenty-one".