2001232210223 has 4 divisors (see below), whose sum is σ = 2001258085848. Its totient is φ = 2001206334600.

The previous prime is 2001232210189. The next prime is 2001232210297. The reversal of 2001232210223 is 3220122321002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2001232210223 - 2²⁰ = 2001231161647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001232210195 and 2001232210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001232219223) 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 3 ways as a sum of consecutive naturals, for example, 12821453 + ... + 12976598.

It is an arithmetic number, because the mean of its divisors is an integer number (500314521462).

Almost surely, 2^{2001232210223} is an apocalyptic number.

2001232210223 is a deficient number, since it is larger than the sum of its proper divisors (25875625).

2001232210223 is an equidigital number, since it uses as much as digits as its factorization.

2001232210223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25875624.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2001232210223 its reverse (3220122321002), we get a palindrome (5221354531225).

The spelling of 2001232210223 in words is "two trillion, one billion, two hundred thirty-two million, two hundred ten thousand, two hundred twenty-three".