1003223021 has 8 divisors (see below), whose sum is σ = 1016747424. Its totient is φ = 989787760.

The previous prime is 1003223017. The next prime is 1003223077. The reversal of 1003223021 is 1203223001.

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 1003223021 - 2² = 1003223017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003222987 and 1003223005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003223321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530 + ... + 44796.

It is an arithmetic number, because the mean of its divisors is an integer number (127093428).

Almost surely, 2^1003223021 is an apocalyptic number.

It is an amenable number.

1003223021 is a deficient number, since it is larger than the sum of its proper divisors (13524403).

1003223021 is a wasteful number, since it uses less digits than its factorization.

1003223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44571.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1003223021 is about 31673.6960426156. The cubic root of 1003223021 is about 1001.0731881884.

Adding to 1003223021 its reverse (1203223001), we get a palindrome (2206446022).

The spelling of 1003223021 in words is "one billion, three million, two hundred twenty-three thousand, twenty-one".