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12143434303220 = 2251155197428651
BaseRepresentation
bin1011000010110101110100…
…0101101000011011110100
31120222220022211000122220012
42300231131011220123310
53042424223140200340
641454341112555352
72362222423326443
oct260553505503364
946886284018805
1012143434303220
1139620020a3870
12144158b6b2b58
136a117592825c
142dda61386d5a
15160d2a3c3565
hexb0b5d1686f4

12143434303220 has 24 divisors (see below), whose sum is σ = 27819504040608. Its totient is φ = 4415794292000.

The previous prime is 12143434303207. The next prime is 12143434303333. The reversal of 12143434303220 is 2230343434121.

12143434303220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27598714106 + ... + 27598714545.

It is an arithmetic number, because the mean of its divisors is an integer number (1159146001692).

Almost surely, 212143434303220 is an apocalyptic number.

12143434303220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12143434303220 is an abundant number, since it is smaller than the sum of its proper divisors (15676069737388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12143434303220 is a wasteful number, since it uses less digits than its factorization.

12143434303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55197428671 (or 55197428669 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 12143434303220 its reverse (2230343434121), we get a palindrome (14373777737341).

The spelling of 12143434303220 in words is "twelve trillion, one hundred forty-three billion, four hundred thirty-four million, three hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 55197428651 110394857302 220789714604 275987143255 551974286510 607171715161 1103948573020 1214343430322 2428686860644 3035858575805 6071717151610 12143434303220