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12320312130 = 2325761320591
BaseRepresentation
bin10110111100101100…
…10000101101000010
31011210121211200222200
423132112100231002
5200212444442010
65354311014030
7614210632230
oct133626205502
934717750880
1012320312130
115252549945
12247a06a316
131214624b29
1484c39b950
154c1942cc0
hex2de590b42

12320312130 has 96 divisors (see below), whose sum is σ = 37209189888. Its totient is φ = 2769897600.

The previous prime is 12320312093. The next prime is 12320312161. The reversal of 12320312130 is 3121302321.

12320312130 is a `hidden beast` number, since 1 + 2 + 320 + 312 + 1 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121866 + ... + 198725.

It is an arithmetic number, because the mean of its divisors is an integer number (387595728).

Almost surely, 212320312130 is an apocalyptic number.

12320312130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12320312130 is an abundant number, since it is smaller than the sum of its proper divisors (24888877758).

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

12320312130 is a wasteful number, since it uses less digits than its factorization.

12320312130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320672 (or 320669 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12320312130 its reverse (3121302321), we get a palindrome (15441614451).

The spelling of 12320312130 in words is "twelve billion, three hundred twenty million, three hundred twelve thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 61 63 70 90 105 122 126 183 210 305 315 366 427 549 610 630 854 915 1098 1281 1830 2135 2562 2745 3843 4270 5490 6405 7686 12810 19215 38430 320591 641182 961773 1602955 1923546 2244137 2885319 3205910 4488274 4808865 5770638 6732411 9617730 11220685 13464822 14426595 19556051 20197233 22441370 28853190 33662055 39112102 40394466 58668153 67324110 97780255 100986165 117336306 136892357 176004459 195560510 201972330 273784714 293340765 352008918 410677071 586681530 684461785 821354142 880022295 1232031213 1368923570 1760044590 2053385355 2464062426 4106770710 6160156065 12320312130