2001211113 has 16 divisors (see below), whose sum is σ = 2919257856. Its totient is φ = 1209353040.

The previous prime is 2001211111. The next prime is 2001211127. The reversal of 2001211113 is 3111121002.

2001211113 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2001211113 - 2¹ = 2001211111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001211111) 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, 75931 + ... + 98832.

It is an arithmetic number, because the mean of its divisors is an integer number (182453616).

Almost surely, 2^2001211113 is an apocalyptic number.

It is an amenable number.

2001211113 is a deficient number, since it is larger than the sum of its proper divisors (918046743).

2001211113 is a wasteful number, since it uses less digits than its factorization.

2001211113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175124.

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

The square root of 2001211113 is about 44734.8981556905. The cubic root of 2001211113 is about 1260.1753163713.

Adding to 2001211113 its reverse (3111121002), we get a palindrome (5112332115).

It can be divided in two parts, 20012 and 11113, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 2001211113 in words is "two billion, one million, two hundred eleven thousand, one hundred thirteen".