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1230012231200 = 25526823225343
BaseRepresentation
bin10001111001100010011…
…100010010111000100000
311100120212200000102101222
4101321202130102320200
5130123031112344300
62341020530514212
7154602564313244
oct21714234227040
94316780012358
101230012231200
11434710924655
1217a474735968
138bcb33730ac
1443766438424
1521ede92d785
hex11e62712e20

1230012231200 has 72 divisors (see below), whose sum is σ = 3003220781568. Its totient is φ = 491930599680.

The previous prime is 1230012231199. The next prime is 1230012231211. The reversal of 1230012231200 is 21322100321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5345729 + ... + 5571071.

It is an arithmetic number, because the mean of its divisors is an integer number (41711399744).

Almost surely, 21230012231200 is an apocalyptic number.

1230012231200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230012231200 is an abundant number, since it is smaller than the sum of its proper divisors (1773208550368).

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

1230012231200 is a wasteful number, since it uses less digits than its factorization.

1230012231200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232186 (or 232173 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1230012231200 its reverse (21322100321), we get a palindrome (1251334331521).

The spelling of 1230012231200 in words is "one trillion, two hundred thirty billion, twelve million, two hundred thirty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 6823 13646 27292 34115 54584 68230 109168 136460 170575 218336 225343 272920 341150 450686 545840 682300 901372 1091680 1126715 1364600 1802744 2253430 2729200 3605488 4506860 5458400 5633575 7210976 9013720 11267150 18027440 22534300 36054880 45068600 90137200 180274400 1537515289 3075030578 6150061156 7687576445 12300122312 15375152890 24600244624 30750305780 38437882225 49200489248 61500611560 76875764450 123001223120 153751528900 246002446240 307503057800 615006115600 1230012231200