2111323113 has 6 divisors (see below), whose sum is σ = 3049688954. Its totient is φ = 1407548736.

The previous prime is 2111323087. The next prime is 2111323117. The reversal of 2111323113 is 3113231112.

It can be written as a sum of positive squares in only one way, i.e., 2042316864 + 69006249 = 45192^2 + 8307^2 .

It is not a de Polignac number, because 2111323113 - 2²¹ = 2109225961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2111323117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117295720 + ... + 117295737.

Almost surely, 2^2111323113 is an apocalyptic number.

It is an amenable number.

2111323113 is a deficient number, since it is larger than the sum of its proper divisors (938365841).

2111323113 is a wasteful number, since it uses less digits than its factorization.

2111323113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234591463 (or 234591460 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 2111323113 is about 45949.1361507483. The cubic root of 2111323113 is about 1282.8766505414.

Adding to 2111323113 its reverse (3113231112), we get a palindrome (5224554225).

The spelling of 2111323113 in words is "two billion, one hundred eleven million, three hundred twenty-three thousand, one hundred thirteen".