2003023221 has 8 divisors (see below), whose sum is σ = 2689911840. Its totient is φ = 1325741712.

The previous prime is 2003023189. The next prime is 2003023271. The reversal of 2003023221 is 1223203002.

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

It is not a de Polignac number, because 2003023221 - 2⁵ = 2003023189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2003023221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003023271) 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, 2401290 + ... + 2402123.

It is an arithmetic number, because the mean of its divisors is an integer number (336238980).

Almost surely, 2^2003023221 is an apocalyptic number.

It is an amenable number.

2003023221 is a deficient number, since it is larger than the sum of its proper divisors (686888619).

2003023221 is a wasteful number, since it uses less digits than its factorization.

2003023221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803555.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2003023221 is about 44755.1474246259. The cubic root of 2003023221 is about 1260.5555669174. Note that the first 4 decimals are identical.

Adding to 2003023221 its reverse (1223203002), we get a palindrome (3226226223).

The spelling of 2003023221 in words is "two billion, three million, twenty-three thousand, two hundred twenty-one".