2001333213223 has 4 divisors (see below), whose sum is σ = 2001744930328. Its totient is φ = 2000921496120.

The previous prime is 2001333213211. The next prime is 2001333213251. The reversal of 2001333213223 is 3223123331002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001333213223 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 (2001333243223) 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, 205851261 + ... + 205860982.

It is an arithmetic number, because the mean of its divisors is an integer number (500436232582).

Almost surely, 2^{2001333213223} is an apocalyptic number.

2001333213223 is a deficient number, since it is larger than the sum of its proper divisors (411717105).

2001333213223 is an equidigital number, since it uses as much as digits as its factorization.

2001333213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411717104.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 2001333213223 its reverse (3223123331002), we get a palindrome (5224456544225).

The spelling of 2001333213223 in words is "two trillion, one billion, three hundred thirty-three million, two hundred thirteen thousand, two hundred twenty-three".