2001023223 has 8 divisors (see below), whose sum is σ = 2698009200. Its totient is φ = 1319026368.

The previous prime is 2001023203. The next prime is 2001023251. The reversal of 2001023223 is 3223201002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2001023223 - 2⁸ = 2001022967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001023203) 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, 3746968 + ... + 3747501.

It is an arithmetic number, because the mean of its divisors is an integer number (337251150).

Almost surely, 2^2001023223 is an apocalyptic number.

2001023223 is a deficient number, since it is larger than the sum of its proper divisors (696985977).

2001023223 is an equidigital number, since it uses as much as digits as its factorization.

2001023223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7494561.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2001023223 is about 44732.7980680842. The cubic root of 2001023223 is about 1260.1358766292.

Adding to 2001023223 its reverse (3223201002), we get a palindrome (5224224225).

The spelling of 2001023223 in words is "two billion, one million, twenty-three thousand, two hundred twenty-three".