2003040221 has 12 divisors (see below), whose sum is σ = 2478827232. Its totient is φ = 1584822096.

The previous prime is 2003040209. The next prime is 2003040229. The reversal of 2003040221 is 1220403002.

It is not a de Polignac number, because 2003040221 - 2¹⁰ = 2003039197 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2003040196 and 2003040205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003040229) 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 11 ways as a sum of consecutive naturals, for example, 845411 + ... + 847776.

It is an arithmetic number, because the mean of its divisors is an integer number (206568936).

Almost surely, 2^2003040221 is an apocalyptic number.

It is an amenable number.

2003040221 is a deficient number, since it is larger than the sum of its proper divisors (475787011).

2003040221 is a wasteful number, since it uses less digits than its factorization.

2003040221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693220 (or 1693207 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2003040221 is about 44755.3373465110. The cubic root of 2003040221 is about 1260.5591330907.

Adding to 2003040221 its reverse (1220403002), we get a palindrome (3223443223).

The spelling of 2003040221 in words is "two billion, three million, forty thousand, two hundred twenty-one".