ORA-00838: Specified value of MEMORY_TARGET is too small, needs to be at least 1328M

1) create pfile from spfile;
2) SQL> startup nomount pfile=D:\app\oracle\product\11.2.0\dbhome_1\database\INITorcl.ora
3)  alter database open;
4) alter database open;
5) create spfile from pfile;