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Eleven

Eleven is the natural number that follows ten and precedes twelve. In base-10 notation it is written as 11. It is a prime number and the smallest two-digit prime; it is also the fifth prime overall. In various numeral systems it appears as binary 1011 and hexadecimal B, and in Roman numerals XI.

Eleven is used in ordinal form as eleventh. In calendars and dates, the eleventh day and the

Eleven is also encountered as a proper name or nickname. For example, in contemporary media the character

In science and chemistry, element 11 is sodium, with the symbol Na. The term eleven is thus

eleventh
month
exist
in
calendars
that
use
day-month-year
formats.
The
term
also
appears
in
phrases
such
as
the
eleventh
hour,
meaning
at
the
last
possible
moment.
In
team
sports
such
as
football
(soccer)
and
cricket,
eleven
or
the
eleven
refers
to
the
standard
number
of
players
on
a
team.
Eleven
(often
called
El)
from
the
TV
series
Stranger
Things
is
portrayed
as
a
young
girl
with
telekinetic
abilities.
The
word
is
sometimes
used
as
a
given
name
or
stage
name
in
other
works
of
fiction.
connected
to
a
range
of
mathematical,
linguistic,
cultural,
and
scientific
contexts.