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12310102120 = 23529711371091
BaseRepresentation
bin10110111011011110…
…10100000001101000
31011202220121222111011
423131233110001220
5200202341231440
65353304113304
7614025066361
oct133557240150
934686558434
1012310102120
115247805a18
122476765834
13121248b7c4
1484aca0b68
154c0ac79ea
hex2ddbd4068

12310102120 has 128 divisors (see below), whose sum is σ = 29295302400. Its totient is φ = 4648806400.

The previous prime is 12310102117. The next prime is 12310102121. The reversal of 12310102120 is 2120101321.

12310102120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×123101021202 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12310102120.

It is not an unprimeable number, because it can be changed into a prime (12310102121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11282775 + ... + 11283865.

It is an arithmetic number, because the mean of its divisors is an integer number (228869550).

Almost surely, 212310102120 is an apocalyptic number.

12310102120 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 12310102120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14647651200).

12310102120 is an abundant number, since it is smaller than the sum of its proper divisors (16985200280).

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

12310102120 is a wasteful number, since it uses less digits than its factorization.

12310102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339 (or 1335 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12310102120 its reverse (2120101321), we get a palindrome (14430203441).

The spelling of 12310102120 in words is "twelve billion, three hundred ten million, one hundred two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 29 40 58 71 116 137 142 145 232 274 284 290 355 548 568 580 685 710 1091 1096 1160 1370 1420 2059 2182 2740 2840 3973 4118 4364 5455 5480 7946 8236 8728 9727 10295 10910 15892 16472 19454 19865 20590 21820 31639 31784 38908 39730 41180 43640 48635 63278 77461 77816 79460 82360 97270 126556 149467 154922 158195 158920 194540 253112 282083 298934 309844 316390 387305 389080 564166 597868 619688 632780 747335 774610 1128332 1195736 1265560 1410415 1494670 1549220 2246369 2256664 2820830 2989340 3098440 4334543 4492738 5641660 5978680 8669086 8985476 10612157 11231845 11283320 17338172 17970952 21224314 21672715 22463690 34676344 42448628 43345430 44927380 53060785 84897256 86690860 89854760 106121570 173381720 212243140 307752553 424486280 615505106 1231010212 1538762765 2462020424 3077525530 6155051060 12310102120