111305513 has 8 divisors (see below), whose sum is σ = 122312160. Its totient is φ = 100446880.

The previous prime is 111305497. The next prime is 111305521. The reversal of 111305513 is 315503111.

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 111305513 - 2⁴ = 111305497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111305563) 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, 35423 + ... + 38436.

It is an arithmetic number, because the mean of its divisors is an integer number (15289020).

Almost surely, 2^111305513 is an apocalyptic number.

It is an amenable number.

111305513 is a deficient number, since it is larger than the sum of its proper divisors (11006647).

111305513 is a wasteful number, since it uses less digits than its factorization.

111305513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74007.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 111305513 is about 10550.1427952422. The cubic root of 111305513 is about 481.0300694517.

Adding to 111305513 its reverse (315503111), we get a palindrome (426808624).

The spelling of 111305513 in words is "one hundred eleven million, three hundred five thousand, five hundred thirteen".