111103013 has 16 divisors (see below), whose sum is σ = 136773120. Its totient is φ = 88116336.

The previous prime is 111102997. The next prime is 111103033. The reversal of 111103013 is 310301111.

It is a happy number.

It is not a de Polignac number, because 111103013 - 2⁴ = 111102997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111102985 and 111103003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111103033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3995 + ... + 15432.

It is an arithmetic number, because the mean of its divisors is an integer number (8548320).

Almost surely, 2^111103013 is an apocalyptic number.

It is an amenable number.

111103013 is a deficient number, since it is larger than the sum of its proper divisors (25670107).

111103013 is a wasteful number, since it uses less digits than its factorization.

111103013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19496.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 111103013 is about 10540.5413997574. The cubic root of 111103013 is about 480.7381769881.

Adding to 111103013 its reverse (310301111), we get a palindrome (421404124).

The spelling of 111103013 in words is "one hundred eleven million, one hundred three thousand, thirteen".