Obligations issued under this chapter are securities in which all public officers and public bodies of the state and its political subdivisions and all insurance companies, trust companies, banking associations, investment companies, executors, administrators, trustees, and other fiduciaries may properly and legally invest funds, including capital in their control or belonging to them. Those obligations may be deposited with a state or municipal officer of an agency or political subdivision of the state for any purpose for which the deposit of bonds, notes, or obligations of the state is authorized by law.