Katapayaadi

Courtesy: Sri.PK.Ramakrishnan

Jaya according to Katapayadi is 18.
 
Here is what Katapayadi is.
 
क ट प या दि
 
क  ख  ग  घ‌‌ङा  च  छ  जझ ञ
1  2   3  4  5  6  7  8  9  0
ट  ठ  ड  ढ  ण  त  थ  द  ध  न
1  2  3  4  5  6   7  8  9  0
प  फ   ब   भ  म
1  2   3   4   5
य  र ल  व  श  ष  स  ह
1  2 3   4  5  6  7  8
 
In case of
combined letters the
last
letter is to be used.
Independent
vowels are all zeros.
 
In
Carnatic music this is used to indicate
the rank
of melakarta raga.  For example
harapriya
is the name of the raga.  Khara
meaning 22
is added to mean that it is the
22nd raga. So it is called kharaharapriya.
 
Naraayana
Bhattathiri compoased the 
Narayaniyam
in honor of Narayana of
Guruvayur
in more than thousand verses.
The last
verse of this is –
 
अज्‍ञात्वा ते मह्त्वं यदिह निगतिदं विश्वनाथ क्षमेथा:
स्तोत्रं चैतत् सहस्रोत्तरमधिकतरं त्वत् प्रसादाय भूयात् /
द्वेधा नारयणीयं श्रुतिषु च जनुषा स्तुत्यतावर्णनेन 
स्फीतं लीलावतारैरिहमिह कुरुताताम् अयुरारोग्यसौख्यम्
//
 
The last word not only
prays for ayuh, arogyam
and saukhyam but also
indicates the kalidinasamkhya
1712210 when he completed the stotram.
This 172210 comes from the katapayaadi.
One has to read in the
reverse order.