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231012113131200 = 2635248127523569
BaseRepresentation
bin110100100001101010110010…
…111100010010011011000000
31010021221112122100202001201110
4310201222302330102123000
5220234400301430144300
62135153255533403320
766442034342462262
oct6441526274223300
91107845570661643
10231012113131200
1167675761431025
1221aab841339540
139bb946c3bbacb
144109090083b32
151ba924dc4a550
hexd21ab2f126c0

231012113131200 has 84 divisors (see below), whose sum is σ = 757912241180360. Its totient is φ = 61603230167040.

The previous prime is 231012113131139. The next prime is 231012113131201. The reversal of 231012113131200 is 2131311210132.

It is not an unprimeable number, because it can be changed into a prime (231012113131201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24063756985 + ... + 24063766584.

Almost surely, 2231012113131200 is an apocalyptic number.

231012113131200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231012113131200 is an abundant number, since it is smaller than the sum of its proper divisors (526900128049160).

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

231012113131200 is a wasteful number, since it uses less digits than its factorization.

231012113131200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48127523594 (or 48127523579 counting only the distinct ones).

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

Adding to 231012113131200 its reverse (2131311210132), we get a palindrome (233143424341332).

The spelling of 231012113131200 in words is "two hundred thirty-one trillion, twelve billion, one hundred thirteen million, one hundred thirty-one thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 150 160 192 200 240 300 320 400 480 600 800 960 1200 1600 2400 4800 48127523569 96255047138 144382570707 192510094276 240637617845 288765141414 385020188552 481275235690 577530282828 721912853535 770040377104 962550471380 1155060565656 1203188089225 1443825707070 1540080754208 1925100942760 2310121131312 2406376178450 2887651414140 3080161508416 3609564267675 3850201885520 4620242262624 4812752356900 5775302828280 7219128535350 7700403771040 9240484525248 9625504713800 11550605656560 14438257070700 15400807542080 19251009427600 23101211313120 28876514141400 38502018855200 46202422626240 57753028282800 77004037710400 115506056565600 231012113131200