2001003213 has 16 divisors (see below), whose sum is σ = 2939372352. Its totient is φ = 1200720000.

The previous prime is 2001003131. The next prime is 2001003217. The reversal of 2001003213 is 3123001002.

It is a happy number.

It is not a de Polignac number, because 2001003213 - 2¹⁰ = 2001002189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001003217) 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 15 ways as a sum of consecutive naturals, for example, 296848 + ... + 303513.

It is an arithmetic number, because the mean of its divisors is an integer number (183710772).

Almost surely, 2^2001003213 is an apocalyptic number.

It is an amenable number.

2001003213 is a deficient number, since it is larger than the sum of its proper divisors (938369139).

2001003213 is a wasteful number, since it uses less digits than its factorization.

2001003213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600476.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2001003213 is about 44732.5744061305. The cubic root of 2001003213 is about 1260.1316762110.

Adding to 2001003213 its reverse (3123001002), we get a palindrome (5124004215).

The spelling of 2001003213 in words is "two billion, one million, three thousand, two hundred thirteen".