2001013323 has 32 divisors (see below), whose sum is σ = 2766984192. Its totient is φ = 1285459200.

The previous prime is 2001013307. The next prime is 2001013337. The reversal of 2001013323 is 3233101002.

It is not a de Polignac number, because 2001013323 - 2⁴ = 2001013307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001013303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5766436 + ... + 5766782.

It is an arithmetic number, because the mean of its divisors is an integer number (86468256).

Almost surely, 2^2001013323 is an apocalyptic number.

2001013323 is a deficient number, since it is larger than the sum of its proper divisors (765970869).

2001013323 is a wasteful number, since it uses less digits than its factorization.

2001013323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835.

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

The square root of 2001013323 is about 44732.6874108856. The cubic root of 2001013323 is about 1260.1337984648.

Adding to 2001013323 its reverse (3233101002), we get a palindrome (5234114325).

It can be divided in two parts, 20010 and 13323, that added together give a palindrome (33333).

The spelling of 2001013323 in words is "two billion, one million, thirteen thousand, three hundred twenty-three".