111680513 has 8 divisors (see below), whose sum is σ = 128610240. Its totient is φ = 94994640.

The previous prime is 111680509. The next prime is 111680519. The reversal of 111680513 is 315086111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111680513 - 2² = 111680509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111680519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59978 + ... + 61811.

It is an arithmetic number, because the mean of its divisors is an integer number (16076280).

Almost surely, 2^111680513 is an apocalyptic number.

It is an amenable number.

111680513 is a deficient number, since it is larger than the sum of its proper divisors (16929727).

111680513 is a wasteful number, since it uses less digits than its factorization.

111680513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121927.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 111680513 is about 10567.9001225409. The cubic root of 111680513 is about 481.5696775669.

The spelling of 111680513 in words is "one hundred eleven million, six hundred eighty thousand, five hundred thirteen".