1003423021 has 8 divisors (see below), whose sum is σ = 1022641664. Its totient is φ = 984329280.

The previous prime is 1003422991. The next prime is 1003423037. The reversal of 1003423021 is 1203243001.

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 1003423021 - 2¹⁹ = 1002898733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003422986 and 1003423004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003423051) 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, 14925 + ... + 47218.

It is an arithmetic number, because the mean of its divisors is an integer number (127830208).

Almost surely, 2^1003423021 is an apocalyptic number.

It is an amenable number.

1003423021 is a deficient number, since it is larger than the sum of its proper divisors (19218643).

1003423021 is an equidigital number, since it uses as much as digits as its factorization.

1003423021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62451.

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

The square root of 1003423021 is about 31676.8530791807. The cubic root of 1003423021 is about 1001.1397075732.

Adding to 1003423021 its reverse (1203243001), we get a palindrome (2206666022).

The spelling of 1003423021 in words is "one billion, three million, four hundred twenty-three thousand, twenty-one".