2001233223 has 20 divisors (see below), whose sum is σ = 3261270408. Its totient is φ = 1212868080.

The previous prime is 2001233207. The next prime is 2001233233. The reversal of 2001233223 is 3223321002.

It is a happy number.

It is not a de Polignac number, because 2001233223 - 2⁴ = 2001233207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001233196 and 2001233205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001233203) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1122136 + ... + 1123917.

Almost surely, 2^2001233223 is an apocalyptic number.

2001233223 is a deficient number, since it is larger than the sum of its proper divisors (1260037185).

2001233223 is a wasteful number, since it uses less digits than its factorization.

2001233223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246076 (or 2246067 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2001233223 is about 44735.1452775108. The cubic root of 2001233223 is about 1260.1799572899.

Adding to 2001233223 its reverse (3223321002), we get a palindrome (5224554225).

It can be divided in two parts, 20012 and 33223, that added together give a palindrome (53235).

The spelling of 2001233223 in words is "two billion, one million, two hundred thirty-three thousand, two hundred twenty-three".