111630681 has 12 divisors (see below), whose sum is σ = 169731120. Its totient is φ = 70503480.

The previous prime is 111630647. The next prime is 111630683. The reversal of 111630681 is 186036111.

It is not a de Polignac number, because 111630681 - 2¹⁰ = 111629657 is a prime.

It is a super-3 number, since 3×111630681³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (111630683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 326235 + ... + 326576.

It is an arithmetic number, because the mean of its divisors is an integer number (14144260).

Almost surely, 2^111630681 is an apocalyptic number.

It is an amenable number.

111630681 is a deficient number, since it is larger than the sum of its proper divisors (58100439).

111630681 is a wasteful number, since it uses less digits than its factorization.

111630681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652836 (or 652833 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 111630681 is about 10565.5421536237. The cubic root of 111630681 is about 481.4980412248.

Adding to 111630681 its reverse (186036111), we get a palindrome (297666792).

The spelling of 111630681 in words is "one hundred eleven million, six hundred thirty thousand, six hundred eighty-one".