2001123303 has 8 divisors (see below), whose sum is σ = 2784171648. Its totient is φ = 1276078584.

The previous prime is 2001123269. The next prime is 2001123307. The reversal of 2001123303 is 3033211002.

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

It is not a de Polignac number, because 2001123303 - 2⁹ = 2001122791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001123307) 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, 14500825 + ... + 14500962.

It is an arithmetic number, because the mean of its divisors is an integer number (348021456).

Almost surely, 2^2001123303 is an apocalyptic number.

2001123303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2001123303 is a deficient number, since it is larger than the sum of its proper divisors (783048345).

2001123303 is a wasteful number, since it uses less digits than its factorization.

2001123303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29001813.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 2001123303 is about 44733.9166963949. The cubic root of 2001123303 is about 1260.1568845973.

Adding to 2001123303 its reverse (3033211002), we get a palindrome (5034334305).

The spelling of 2001123303 in words is "two billion, one million, one hundred twenty-three thousand, three hundred three".