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12012310131210 = 2335307144918689
BaseRepresentation
bin1010111011001101010101…
…1110100111001000001010
31120112100212112202120012000
42232303111132213020022
53033302202343144320
641314213514531430
72346601146262614
oct256632536471012
946470775676160
1012012310131210
1139114349aa664
121420096436b76
136919a9b8b6ac
142d7582889db4
1515c703a01c90
hexaecd57a720a

12012310131210 has 64 divisors (see below), whose sum is σ = 32137168694400. Its totient is φ = 3192848534016.

The previous prime is 12012310131197. The next prime is 12012310131229. The reversal of 12012310131210 is 1213101321021.

12012310131210 is a `hidden beast` number, since 1 + 2 + 0 + 12 + 310 + 131 + 210 = 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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72376455 + ... + 72542234.

It is an arithmetic number, because the mean of its divisors is an integer number (502143260850).

Almost surely, 212012310131210 is an apocalyptic number.

12012310131210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012310131210 is an abundant number, since it is smaller than the sum of its proper divisors (20124858563190).

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

12012310131210 is a wasteful number, since it uses less digits than its factorization.

12012310131210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144919012 (or 144919006 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12012310131210 its reverse (1213101321021), we get a palindrome (13225411452231).

The spelling of 12012310131210 in words is "twelve trillion, twelve billion, three hundred ten million, one hundred thirty-one thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 307 614 921 1535 1842 2763 3070 4605 5526 8289 9210 13815 16578 27630 41445 82890 144918689 289837378 434756067 724593445 869512134 1304268201 1449186890 2173780335 2608536402 3912804603 4347560670 6521341005 7825609206 13042682010 19564023015 39128046030 44490037523 88980075046 133470112569 222450187615 266940225138 400410337707 444900375230 667350562845 800820675414 1201231013121 1334701125690 2002051688535 2402462026242 4004103377070 6006155065605 12012310131210