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12133231210020 = 22352313764176617
BaseRepresentation
bin1011000010001111110011…
…1011111010111000100100
31120221220222202002211021110
42300203330323322320210
53042242324142210040
641445532433145020
72361411531425154
oct260437473727044
946856882084243
1012133231210020
113958746783938
12143b6026bb170
136a020ab3c8bb
142dd374278764
1516092e799980
hexb08fcefae24

12133231210020 has 96 divisors (see below), whose sum is σ = 35708897081088. Its totient is φ = 3072262961152.

The previous prime is 12133231210007. The next prime is 12133231210057. The reversal of 12133231210020 is 2001213233121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31899249 + ... + 32277368.

It is an arithmetic number, because the mean of its divisors is an integer number (371967677928).

Almost surely, 212133231210020 is an apocalyptic number.

12133231210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12133231210020 is an abundant number, since it is smaller than the sum of its proper divisors (23575665871068).

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

12133231210020 is a wasteful number, since it uses less digits than its factorization.

12133231210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64176789 (or 64176787 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12133231210020 its reverse (2001213233121), we get a palindrome (14134444443141).

The spelling of 12133231210020 in words is "twelve trillion, one hundred thirty-three billion, two hundred thirty-one million, two hundred ten thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 137 138 230 274 276 345 411 460 548 685 690 822 1370 1380 1644 2055 2740 3151 4110 6302 8220 9453 12604 15755 18906 31510 37812 47265 63020 94530 189060 64176617 128353234 192529851 256706468 320883085 385059702 641766170 770119404 962649255 1283532340 1476062191 1925298510 2952124382 3850597020 4428186573 5904248764 7380310955 8792196529 8856373146 14760621910 17584393058 17712746292 22140932865 26376589587 29521243820 35168786116 43960982645 44281865730 52753179174 87921965290 88563731460 105506358348 131882947935 175843930580 202220520167 263765895870 404441040334 527531791740 606661560501 808882080668 1011102600835 1213323121002 2022205201670 2426646242004 3033307802505 4044410403340 6066615605010 12133231210020