JSFiddle - React, Tailwind, and code Playground

HTML

<div id="info_123" style="display:none;"> test
    <input type="text" name="info" value="test">
</div>
<input type="radio" name="radios" value="123">
<input type="radio" name="radios" value="456">
<input type="radio" name="radios" value="789">

JavaScript

$(":input[type='radio']").on("change", function () {
    if ($(this).prop("checked") && $(this).val() != 123) $("#info_123").hide();
    else $("#info_123").show();
});