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12131120133120 = 21035789786467
BaseRepresentation
bin1011000010000111111100…
…0110110011010000000000
31120221201112121202000012010
42300201333012303100000
53042224013223224440
641444543141332520
72361305315525052
oct260417706632000
946851477660163
1012131120133120
11395786306a58a
12143b113707140
1369cc62673c81
142dd213b478d2
15160859295580
hexb087f1b3400

12131120133120 has 88 divisors (see below), whose sum is σ = 38800629599904. Its totient is φ = 3234965364736.

The previous prime is 12131120133079. The next prime is 12131120133127. The reversal of 12131120133120 is 2133102113121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131120133127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394877874 + ... + 394908593.

Almost surely, 212131120133120 is an apocalyptic number.

12131120133120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131120133120 is an abundant number, since it is smaller than the sum of its proper divisors (26669509466784).

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

12131120133120 is an equidigital number, since it uses as much as digits as its factorization.

12131120133120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789786495 (or 789786477 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12131120133120 its reverse (2133102113121), we get a palindrome (14264222246241).

The spelling of 12131120133120 in words is "twelve trillion, one hundred thirty-one billion, one hundred twenty million, one hundred thirty-three thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1024 1280 1536 1920 2560 3072 3840 5120 7680 15360 789786467 1579572934 2369359401 3159145868 3948932335 4738718802 6318291736 7897864670 9477437604 11846797005 12636583472 15795729340 18954875208 23693594010 25273166944 31591458680 37909750416 47387188020 50546333888 63182917360 75819500832 94774376040 101092667776 126365834720 151639001664 189548752080 202185335552 252731669440 303278003328 379097504160 404370671104 505463338880 606556006656 758195008320 808741342208 1010926677760 1213112013312 1516390016640 2021853355520 2426224026624 3032780033280 4043706711040 6065560066560 12131120133120