1109242103 has 4 divisors (see below), whose sum is σ = 1109644320. Its totient is φ = 1108839888.

The previous prime is 1109242087. The next prime is 1109242109. The reversal of 1109242103 is 3012429011.

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 1109242103 - 2⁴ = 1109242087 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 (1109242109) 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, 196943 + ... + 202496.

It is an arithmetic number, because the mean of its divisors is an integer number (277411080).

Almost surely, 2^1109242103 is an apocalyptic number.

1109242103 is a deficient number, since it is larger than the sum of its proper divisors (402217).

1109242103 is an equidigital number, since it uses as much as digits as its factorization.

1109242103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402216.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1109242103 is about 33305.2864122199. The cubic root of 1109242103 is about 1035.1630984462.

The spelling of 1109242103 in words is "one billion, one hundred nine million, two hundred forty-two thousand, one hundred three".