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12012131233110 = 235795579099479
BaseRepresentation
bin1010111011001100101011…
…0100001010110101010110
31120112100102002010121010110
42232303022310022311112
53033301321043424420
641314144044303450
72346563544544041
oct256631264126526
946470362117113
1012012131233110
113911352a1a898
121420046541b86
1369197bab2228
142d7566bdbc58
1515c6e2e64ee0
hexaeccad0ad56

12012131233110 has 64 divisors (see below), whose sum is σ = 29246456678400. Its totient is φ = 3157009295232.

The previous prime is 12012131233097. The next prime is 12012131233129. The reversal of 12012131233110 is 1133213121021.

It is a super-2 number, since 2×120121312331102 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 3229650 + ... + 5869829.

It is an arithmetic number, because the mean of its divisors is an integer number (456975885600).

Almost surely, 212012131233110 is an apocalyptic number.

12012131233110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012131233110 is an abundant number, since it is smaller than the sum of its proper divisors (17234325445290).

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

12012131233110 is a wasteful number, since it uses less digits than its factorization.

12012131233110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9100125.

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

Adding to 12012131233110 its reverse (1133213121021), we get a palindrome (13145344354131).

The spelling of 12012131233110 in words is "twelve trillion, twelve billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 79 158 237 395 474 557 790 1114 1185 1671 2370 2785 3342 5570 8355 16710 44003 88006 132009 220015 264018 440030 660045 1320090 9099479 18198958 27298437 45497395 54596874 90994790 136492185 272984370 718858841 1437717682 2156576523 3594294205 4313153046 5068409803 7188588410 10136819606 10782882615 15205229409 21565765230 25342049015 30410458818 50684098030 76026147045 152052294090 400404374437 800808748874 1201213123311 2002021872185 2402426246622 4004043744370 6006065616555 12012131233110