111913103 has 4 divisors (see below), whose sum is σ = 111935208. Its totient is φ = 111891000.

The previous prime is 111913079. The next prime is 111913121. The reversal of 111913103 is 301319111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111913103 - 2²⁰ = 110864527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111913163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728 + ... + 14978.

It is an arithmetic number, because the mean of its divisors is an integer number (27983802).

Almost surely, 2^111913103 is an apocalyptic number.

111913103 is a deficient number, since it is larger than the sum of its proper divisors (22105).

111913103 is an equidigital number, since it uses as much as digits as its factorization.

111913103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22104.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 111913103 is about 10578.8989502689. The cubic root of 111913103 is about 481.9037574065.

The spelling of 111913103 in words is "one hundred eleven million, nine hundred thirteen thousand, one hundred three".