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12031333332220 = 2252975134138093
BaseRepresentation
bin1010111100010100001101…
…0110010111010011111100
31120121011222022021022010101
42233011003112113103330
53034110132313112340
641331041312050444
72351143440646216
oct257050326272374
946534868238111
1012031333332220
113919507012094
121423905233a24
1369371c090557
142d84691435b6
1515ce68b20c9a
hexaf1435974fc

12031333332220 has 96 divisors (see below), whose sum is σ = 26182740568320. Its totient is φ = 4638463872000.

The previous prime is 12031333332127. The next prime is 12031333332233. The reversal of 12031333332220 is 2223333313021.

It is a congruent number.

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, 1486630494 + ... + 1486638586.

It is an arithmetic number, because the mean of its divisors is an integer number (272736880920).

Almost surely, 212031333332220 is an apocalyptic number.

12031333332220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12031333332220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13091370284160).

12031333332220 is an abundant number, since it is smaller than the sum of its proper divisors (14151407236100).

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

12031333332220 is a wasteful number, since it uses less digits than its factorization.

12031333332220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12295 (or 12293 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 12031333332220 its reverse (2223333313021), we get a palindrome (14254666645241).

The spelling of 12031333332220 in words is "twelve trillion, thirty-one billion, three hundred thirty-three million, three hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 751 1502 3004 3413 3755 6826 7510 8093 13652 15020 16186 17065 21779 32372 34130 40465 43558 68260 80930 87116 98977 108895 161860 197954 217790 234697 395908 435580 469394 494885 938788 989770 1173485 1979540 2346970 2563163 4693940 5126326 6077843 10252652 12155686 12815815 24311372 25631630 27621409 30389215 51263260 55242818 60778430 74331727 110485636 121556860 138107045 148663454 176257447 276214090 297326908 352514894 371658635 552428180 705029788 743317270 801020861 881287235 1486634540 1602041722 1762574470 3204083444 3525148940 4005104305 8010208610 16020417220 20743678159 41487356318 82974712636 103718390795 207436781590 414873563180 601566666611 1203133333222 2406266666444 3007833333055 6015666666110 12031333332220