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120131113020 = 223517656917929
BaseRepresentation
bin110111111100001011…
…1110101000000111100
3102111002010212211202020
41233320113311000330
53432012031104040
6131104254400140
711451650420052
oct1577027650074
9374063784666
10120131113020
1146a46977296
121b347800050
13b436402639
145b589161d2
1531d1753cd0
hex1bf85f503c

120131113020 has 96 divisors (see below), whose sum is σ = 356227502400. Its totient is φ = 30144282624.

The previous prime is 120131112989. The next prime is 120131113057. The reversal of 120131113020 is 20311131021.

It is a happy number.

120131113020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6691416 + ... + 6709344.

It is an arithmetic number, because the mean of its divisors is an integer number (3710703150).

Almost surely, 2120131113020 is an apocalyptic number.

120131113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120131113020 is an abundant number, since it is smaller than the sum of its proper divisors (236096389380).

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

120131113020 is a wasteful number, since it uses less digits than its factorization.

120131113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24527 (or 24525 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 120131113020 its reverse (20311131021), we get a palindrome (140442244041).

The spelling of 120131113020 in words is "one hundred twenty billion, one hundred thirty-one million, one hundred thirteen thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 6569 13138 17929 19707 26276 32845 35858 39414 53787 65690 71716 78828 89645 98535 107574 111673 131380 179290 197070 215148 223346 268935 304793 335019 358580 394140 446692 537870 558365 609586 670038 914379 1075740 1116730 1219172 1340076 1523965 1675095 1828758 2233460 3047930 3350190 3657516 4571895 6095860 6700380 9143790 18287580 117775601 235551202 353326803 471102404 588878005 706653606 1177756010 1413307212 1766634015 2002185217 2355512020 3533268030 4004370434 6006555651 7066536060 8008740868 10010926085 12013111302 20021852170 24026222604 30032778255 40043704340 60065556510 120131113020