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12031322120300 = 22527120209142981
BaseRepresentation
bin1010111100010100001010…
…1011100110000001101100
31120121011221112011200021002
42233011002223212001230
53034110121430322200
641331040231455432
72351143243441340
oct257050253460154
946534845150232
1012031322120300
11391950075443a
121423901527578
13693719966192
142d8467865620
1515ce67b58bd5
hexaf142ae606c

12031322120300 has 72 divisors (see below), whose sum is σ = 29838135757920. Its totient is φ = 4124961561600.

The previous prime is 12031322120263. The next prime is 12031322120309. The reversal of 12031322120300 is 302122313021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (12031322120309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84074810 + ... + 84217790.

Almost surely, 212031322120300 is an apocalyptic number.

12031322120300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031322120300 is an abundant number, since it is smaller than the sum of its proper divisors (17806813637620).

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

12031322120300 is a wasteful number, since it uses less digits than its factorization.

12031322120300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263211 (or 263204 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12031322120300 its reverse (302122313021), we get a palindrome (12333444433321).

The spelling of 12031322120300 in words is "twelve trillion, thirty-one billion, three hundred twenty-two million, one hundred twenty thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 700 120209 142981 240418 285962 480836 571924 601045 714905 841463 1000867 1202090 1429810 1682926 2001734 2404180 2859620 3005225 3365852 3574525 4003468 4207315 5004335 6010450 7149050 8414630 10008670 12020900 14298100 16829260 20017340 21036575 25021675 42073150 50043350 84146300 100086700 17187603029 34375206058 68750412116 85938015145 120313221203 171876030290 240626442406 343752060580 429690075725 481252884812 601566106015 859380151450 1203132212030 1718760302900 2406264424060 3007830530075 6015661060150 12031322120300