2011211113 has 8 divisors (see below), whose sum is σ = 2016241416. Its totient is φ = 2006188800.

The previous prime is 2011210997. The next prime is 2011211117. The reversal of 2011211113 is 3111121102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 558991449 + 1452219664 = 23643^2 + 38108^2 .

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 2011211113 - 2²⁹ = 1474340201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011211093 and 2011211102.

It is not an unprimeable number, because it can be changed into a prime (2011211117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039495 + ... + 1041427.

It is an arithmetic number, because the mean of its divisors is an integer number (252030177).

Almost surely, 2^2011211113 is an apocalyptic number.

It is an amenable number.

2011211113 is a deficient number, since it is larger than the sum of its proper divisors (5030303).

2011211113 is a wasteful number, since it uses less digits than its factorization.

2011211113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 2011211113 is about 44846.5284386651. The cubic root of 2011211113 is about 1262.2708509117.

Adding to 2011211113 its reverse (3111121102), we get a palindrome (5122332215).

The spelling of 2011211113 in words is "two billion, eleven million, two hundred eleven thousand, one hundred thirteen".