2112423113 has 4 divisors (see below), whose sum is σ = 2125382928. Its totient is φ = 2099463300.

The previous prime is 2112423091. The next prime is 2112423121. The reversal of 2112423113 is 3113242112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2112423113 - 2²⁰ = 2111374537 is a prime.

It is a super-2 number, since 2×2112423113² = 8924662816673221538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112423163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6479663 + ... + 6479988.

It is an arithmetic number, because the mean of its divisors is an integer number (531345732).

Almost surely, 2^2112423113 is an apocalyptic number.

It is an amenable number.

2112423113 is a deficient number, since it is larger than the sum of its proper divisors (12959815).

2112423113 is a wasteful number, since it uses less digits than its factorization.

2112423113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12959814.

The product of its digits is 288, while the sum is 20.

The square root of 2112423113 is about 45961.1043492212. The cubic root of 2112423113 is about 1283.0994049058.

Adding to 2112423113 its reverse (3113242112), we get a palindrome (5225665225).

The spelling of 2112423113 in words is "two billion, one hundred twelve million, four hundred twenty-three thousand, one hundred thirteen".