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12200431431231 = 324347670758779
BaseRepresentation
bin1011000110001010001001…
…1000011010111000111111
31121012100110001011202200100
42301202202120122320333
53044342440421244411
641540444551132143
72366311031040351
oct261424230327077
947170401152610
1012200431431231
1139841a052973a
121450637974053
136a665a2068c4
1430270b0c70d1
151625641b6456
hexb18a261ae3f

12200431431231 has 24 divisors (see below), whose sum is σ = 18416353063680. Its totient is φ = 7775435754576.

The previous prime is 12200431431217. The next prime is 12200431431233. The reversal of 12200431431231 is 13213413400221.

12200431431231 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 0 + 4 + 314 + 312 + 31 = 666.

12200431431231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12200431431231 - 217 = 12200431300159 is a prime.

It is a super-2 number, since 2×122004314312312 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12200431431195 and 12200431431204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200431431233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335361201 + ... + 335397578.

It is an arithmetic number, because the mean of its divisors is an integer number (767348044320).

Almost surely, 212200431431231 is an apocalyptic number.

12200431431231 is a deficient number, since it is larger than the sum of its proper divisors (6215921632449).

12200431431231 is a wasteful number, since it uses less digits than its factorization.

12200431431231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670758875 (or 670758872 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 12200431431231 its reverse (13213413400221), we get a palindrome (25413844831452).

The spelling of 12200431431231 in words is "twelve trillion, two hundred billion, four hundred thirty-one million, four hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 3 9 43 47 129 141 387 423 2021 6063 18189 670758779 2012276337 6036829011 28842627497 31525662613 86527882491 94576987839 259583647473 283730963517 1355603492359 4066810477077 12200431431231