2001322023 has 8 divisors (see below), whose sum is σ = 2784448128. Its totient is φ = 1276205304.

The previous prime is 2001322021. The next prime is 2001322031. The reversal of 2001322023 is 3202231002.

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

It is not a de Polignac number, because 2001322023 - 2¹ = 2001322021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001321993 and 2001322011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001322021) 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, 14502265 + ... + 14502402.

It is an arithmetic number, because the mean of its divisors is an integer number (348056016).

Almost surely, 2^2001322023 is an apocalyptic number.

2001322023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2001322023 is a deficient number, since it is larger than the sum of its proper divisors (783126105).

2001322023 is a wasteful number, since it uses less digits than its factorization.

2001322023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29004693.

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

The square root of 2001322023 is about 44736.1377747342. The cubic root of 2001322023 is about 1260.1985961844.

Adding to 2001322023 its reverse (3202231002), we get a palindrome (5203553025).

The spelling of 2001322023 in words is "two billion, one million, three hundred twenty-two thousand, twenty-three".