2003212321 has 8 divisors (see below), whose sum is σ = 2186020800. Its totient is φ = 1820520240.

The previous prime is 2003212303. The next prime is 2003212361. The reversal of 2003212321 is 1232123002.

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

It is not a de Polignac number, because 2003212321 - 2¹¹ = 2003210273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003212295 and 2003212304.

It is not an unprimeable number, because it can be changed into a prime (2003212361) 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, 9075 + ... + 63943.

It is an arithmetic number, because the mean of its divisors is an integer number (273252600).

Almost surely, 2^2003212321 is an apocalyptic number.

It is an amenable number.

2003212321 is a deficient number, since it is larger than the sum of its proper divisors (182808479).

2003212321 is a wasteful number, since it uses less digits than its factorization.

2003212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58199.

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

The square root of 2003212321 is about 44757.2599809238. The cubic root of 2003212321 is about 1260.5952342153.

Adding to 2003212321 its reverse (1232123002), we get a palindrome (3235335323).

The spelling of 2003212321 in words is "two billion, three million, two hundred twelve thousand, three hundred twenty-one".