1111112113 has 4 divisors (see below), whose sum is σ = 1111792500. Its totient is φ = 1110431728.

The previous prime is 1111112099. The next prime is 1111112117. The reversal of 1111112113 is 3112111111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 264127504 + 846984609 = 16252^2 + 29103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111112113 - 2⁹ = 1111111601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111112093 and 1111112102.

It is not an unprimeable number, because it can be changed into a prime (1111112117) 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, 337738 + ... + 341011.

It is an arithmetic number, because the mean of its divisors is an integer number (277948125).

Almost surely, 2^1111112113 is an apocalyptic number.

It is an amenable number.

1111112113 is a deficient number, since it is larger than the sum of its proper divisors (680387).

1111112113 is an equidigital number, since it uses as much as digits as its factorization.

1111112113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680386.

The product of its digits is 6, while the sum is 13.

The square root of 1111112113 is about 33333.3483616633. The cubic root of 1111112113 is about 1035.7444799614.

Adding to 1111112113 its reverse (3112111111), we get a palindrome (4223223224).

The spelling of 1111112113 in words is "one billion, one hundred eleven million, one hundred twelve thousand, one hundred thirteen".