2001323011 has 8 divisors (see below), whose sum is σ = 2154965040. Its totient is φ = 1851671808.

The previous prime is 2001322997. The next prime is 2001323039. The reversal of 2001323011 is 1103231002.

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

It is a cyclic number.

It is not a de Polignac number, because 2001323011 - 2¹⁵ = 2001290243 is a prime.

It is a super-2 number, since 2×2001323011² = 8010587588716212242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001322982 and 2001323000.

It is not an unprimeable number, because it can be changed into a prime (2001323711) 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, 996666 + ... + 998671.

It is an arithmetic number, because the mean of its divisors is an integer number (269370630).

Almost surely, 2^2001323011 is an apocalyptic number.

2001323011 is a deficient number, since it is larger than the sum of its proper divisors (153642029).

2001323011 is a wasteful number, since it uses less digits than its factorization.

2001323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995413.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2001323011 is about 44736.1488172596. The cubic root of 2001323011 is about 1260.1988035600.

Adding to 2001323011 its reverse (1103231002), we get a palindrome (3104554013).

The spelling of 2001323011 in words is "two billion, one million, three hundred twenty-three thousand, eleven".