2001333001223 has 4 divisors (see below), whose sum is σ = 2012901400248. Its totient is φ = 1989764602200.

The previous prime is 2001333001141. The next prime is 2001333001231. The reversal of 2001333001223 is 3221003331002.

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 2001333001223 - 2⁸ = 2001333000967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001333001195 and 2001333001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001333001243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5784199253 + ... + 5784199598.

It is an arithmetic number, because the mean of its divisors is an integer number (503225350062).

Almost surely, 2^{2001333001223} is an apocalyptic number.

2001333001223 is a deficient number, since it is larger than the sum of its proper divisors (11568399025).

2001333001223 is a wasteful number, since it uses less digits than its factorization.

2001333001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11568399024.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 2001333001223 its reverse (3221003331002), we get a palindrome (5222336332225).

The spelling of 2001333001223 in words is "two trillion, one billion, three hundred thirty-three million, one thousand, two hundred twenty-three".