Answer:
2.3 × 10^11
Explanation:
To find scientific notation, you put one number in front of the decimal and the rest of the numbers that AREN'T ZERO go behind the decimal.
You always multiply that number by 10 and the exponent of 10 is equal to however many more numbers and zeros that follow the number that comes BEFORE THE DECIMAL.
After the number 2 in 230,000,000,000 - there are 11 more numbers!
Hope I helped! Let me know if you have any questions about my answer.