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12312230331012 = 22361151111390641
BaseRepresentation
bin1011001100101010101000…
…0111011000001010000100
31121121001000111112022122020
42303022222013120022010
53103210421431043022
642104054401403140
72410346355023523
oct263125207301204
947531014468566
1012312230331012
113a17651051887
12146a2390394b0
136b40662c9b41
14307cb51784ba
1516540919b35c
hexb32aa1d8284

12312230331012 has 48 divisors (see below), whose sum is σ = 29392871485824. Its totient is φ = 4010063040000.

The previous prime is 12312230330969. The next prime is 12312230331041. The reversal of 12312230331012 is 21013303221321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55584789 + ... + 55805852.

It is an arithmetic number, because the mean of its divisors is an integer number (612351489288).

Almost surely, 212312230331012 is an apocalyptic number.

12312230331012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12312230331012 is an abundant number, since it is smaller than the sum of its proper divisors (17080641154812).

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

12312230331012 is a wasteful number, since it uses less digits than its factorization.

12312230331012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111390860 (or 111390858 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12312230331012 its reverse (21013303221321), we get a palindrome (33325533552333).

The spelling of 12312230331012 in words is "twelve trillion, three hundred twelve billion, two hundred thirty million, three hundred thirty-one thousand, twelve".

Divisors: 1 2 3 4 6 12 61 122 151 183 244 302 366 453 604 732 906 1812 9211 18422 27633 36844 55266 110532 111390641 222781282 334171923 445562564 668343846 1336687692 6794829101 13589658202 16819986791 20384487303 27179316404 33639973582 40768974606 50459960373 67279947164 81537949212 100919920746 201839841492 1026019194251 2052038388502 3078057582753 4104076777004 6156115165506 12312230331012