111630113 has 4 divisors (see below), whose sum is σ = 127577280. Its totient is φ = 95682948.

The previous prime is 111630091. The next prime is 111630131. The reversal of 111630113 is 311036111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 311036111 = 163 ⋅1908197.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111630113 is a prime.

It is a super-2 number, since 2×111630113² = 24922564256785538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111630091 and 111630100.

It is not an unprimeable number, because it can be changed into a prime (111630133) 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, 7973573 + ... + 7973586.

It is an arithmetic number, because the mean of its divisors is an integer number (31894320).

Almost surely, 2^111630113 is an apocalyptic number.

It is an amenable number.

111630113 is a deficient number, since it is larger than the sum of its proper divisors (15947167).

111630113 is an equidigital number, since it uses as much as digits as its factorization.

111630113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15947166.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 111630113 is about 10565.5152737574. The cubic root of 111630113 is about 481.4972245695.

Adding to 111630113 its reverse (311036111), we get a palindrome (422666224).

The spelling of 111630113 in words is "one hundred eleven million, six hundred thirty thousand, one hundred thirteen".