2001230213 has 8 divisors (see below), whose sum is σ = 2060455320. Its totient is φ = 1942501120.

The previous prime is 2001230201. The next prime is 2001230219. The reversal of 2001230213 is 3120321002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 633931684 + 1367298529 = 25178^2 + 36977^2 .

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 2001230213 - 2⁴ = 2001230197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001230219) 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, 115808 + ... + 131961.

It is an arithmetic number, because the mean of its divisors is an integer number (257556915).

Almost surely, 2^2001230213 is an apocalyptic number.

It is an amenable number.

2001230213 is a deficient number, since it is larger than the sum of its proper divisors (59225107).

2001230213 is a wasteful number, since it uses less digits than its factorization.

2001230213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248007.

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

The square root of 2001230213 is about 44735.1116350457. Note that the first 3 decimals coincide. The cubic root of 2001230213 is about 1260.1793254889.

Adding to 2001230213 its reverse (3120321002), we get a palindrome (5121551215).

The spelling of 2001230213 in words is "two billion, one million, two hundred thirty thousand, two hundred thirteen".