103109243 has 4 divisors (see below), whose sum is σ = 103130568. Its totient is φ = 103087920.

The previous prime is 103109231. The next prime is 103109261. The reversal of 103109243 is 342901301.

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 103109243 - 2⁸ = 103108987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103109273) 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, 455 + ... + 14367.

It is an arithmetic number, because the mean of its divisors is an integer number (25782642).

Almost surely, 2^103109243 is an apocalyptic number.

103109243 is a deficient number, since it is larger than the sum of its proper divisors (21325).

103109243 is an equidigital number, since it uses as much as digits as its factorization.

103109243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21324.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 103109243 is about 10154.2721551079. The cubic root of 103109243 is about 468.9204784835.

The spelling of 103109243 in words is "one hundred three million, one hundred nine thousand, two hundred forty-three".