2111312113 has 8 divisors (see below), whose sum is σ = 2127171200. Its totient is φ = 2095504128.

The previous prime is 2111312087. The next prime is 2111312153. The reversal of 2111312113 is 3112131112.

It is a happy number.

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 2111312113 - 2²⁹ = 1574441201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111312153) 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, 72268 + ... + 97186.

It is an arithmetic number, because the mean of its divisors is an integer number (265896400).

Almost surely, 2^2111312113 is an apocalyptic number.

It is an amenable number.

2111312113 is a deficient number, since it is larger than the sum of its proper divisors (15859087).

2111312113 is a wasteful number, since it uses less digits than its factorization.

2111312113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25551.

The product of its digits is 36, while the sum is 16.

The square root of 2111312113 is about 45949.0164530211. The cubic root of 2111312113 is about 1282.8744226071.

Adding to 2111312113 its reverse (3112131112), we get a palindrome (5223443225).

The spelling of 2111312113 in words is "two billion, one hundred eleven million, three hundred twelve thousand, one hundred thirteen".