2001232011 has 16 divisors (see below), whose sum is σ = 2710812416. Its totient is φ = 1313063136.

The previous prime is 2001231989. The next prime is 2001232069. The reversal of 2001232011 is 1102321002.

It is not a de Polignac number, because 2001232011 - 2⁵ = 2001231979 is a prime.

It is a super-2 number, since 2×2001232011² = 8009859123702208242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001232711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30501 + ... + 70233.

It is an arithmetic number, because the mean of its divisors is an integer number (169425776).

Almost surely, 2^2001232011 is an apocalyptic number.

2001232011 is a deficient number, since it is larger than the sum of its proper divisors (709580405).

2001232011 is a wasteful number, since it uses less digits than its factorization.

2001232011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40002.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2001232011 is about 44735.1317311126. The cubic root of 2001232011 is about 1260.1797028904.

Adding to 2001232011 its reverse (1102321002), we get a palindrome (3103553013).

The spelling of 2001232011 in words is "two billion, one million, two hundred thirty-two thousand, eleven".