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12312330231132 = 22321619211247173
BaseRepresentation
bin1011001100101011000000…
…0100011101110101011100
31121121001021110111202211200
42303022300010131311130
53103211123014344012
642104112330515500
72410352010121521
oct263126004356534
947531243452750
1012312330231132
113a176a2485268
12146a266595b90
136b4080c07039
14307cc4541148
15165412d313dc
hexb32b011dd5c

12312330231132 has 36 divisors (see below), whose sum is σ = 31142058391080. Its totient is φ = 4101575091552.

The previous prime is 12312330231023. The next prime is 12312330231161. The reversal of 12312330231132 is 23113203321321.

12312330231132 is a `hidden beast` number, since 1 + 2 + 3 + 12 + 3 + 302 + 311 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 12312330231096 and 12312330231105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105565303 + ... + 105681870.

It is an arithmetic number, because the mean of its divisors is an integer number (865057177530).

Almost surely, 212312330231132 is an apocalyptic number.

12312330231132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12312330231132 is an abundant number, since it is smaller than the sum of its proper divisors (18829728159948).

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

12312330231132 is a wasteful number, since it uses less digits than its factorization.

12312330231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211248802 (or 211248797 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 12312330231132 its reverse (23113203321321), we get a palindrome (35425533552453).

The spelling of 12312330231132 in words is "twelve trillion, three hundred twelve billion, three hundred thirty million, two hundred thirty-one thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 1619 3238 4857 6476 9714 14571 19428 29142 58284 211247173 422494346 633741519 844988692 1267483038 1901224557 2534966076 3802449114 7604898228 342009173087 684018346174 1026027519261 1368036692348 2052055038522 3078082557783 4104110077044 6156165115566 12312330231132