111685013 has 8 divisors (see below), whose sum is σ = 122459040. Its totient is φ = 101014480.

The previous prime is 111685009. The next prime is 111685031. The reversal of 111685013 is 310586111.

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 111685013 - 2² = 111685009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111685813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23603 + ... + 27936.

It is an arithmetic number, because the mean of its divisors is an integer number (15307380).

Almost surely, 2^111685013 is an apocalyptic number.

It is an amenable number.

111685013 is a deficient number, since it is larger than the sum of its proper divisors (10774027).

111685013 is a wasteful number, since it uses less digits than its factorization.

111685013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51747.

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

The square root of 111685013 is about 10568.1130292971. The cubic root of 111685013 is about 481.5761455244.

The spelling of 111685013 in words is "one hundred eleven million, six hundred eighty-five thousand, thirteen".