To find the numerical equivalent of \(10^2 \cdot 10^3\), we can use the property of exponents that states:
\[ a^m \cdot a^n = a^{m+n} \]
In this case, \(a = 10\), \(m = 2\), and \(n = 3\). Therefore:
\[ 10^2 \cdot 10^3 = 10^{2+3} = 10^5 \]
Now, we can calculate \(10^5\):
\[ 10^5 = 100000 \]
Thus, the numerical equivalent of \(10^2 \cdot 10^3\) is:
\[ \boxed{100000} \]