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12143203122 = 23171091109121
BaseRepresentation
bin10110100111100101…
…01001001100110010
31011100021120122002210
423103302221030302
5144332124444442
65324542552550
7606630344361
oct132362511462
934307518083
1012143203122
115171581266
12242a898756
1311b6a23abb
14832a577d8
154b110b19c
hex2d3ca9332

12143203122 has 32 divisors (see below), whose sum is σ = 25738824384. Its totient is φ = 3806105600.

The previous prime is 12143203109. The next prime is 12143203129. The reversal of 12143203122 is 22130234121.

12143203122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12143203129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56722 + ... + 165842.

It is an arithmetic number, because the mean of its divisors is an integer number (804338262).

Almost surely, 212143203122 is an apocalyptic number.

12143203122 is an abundant number, since it is smaller than the sum of its proper divisors (13595621262).

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

12143203122 is a wasteful number, since it uses less digits than its factorization.

12143203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110234.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12143203122 its reverse (22130234121), we get a palindrome (34273437243).

The spelling of 12143203122 in words is "twelve billion, one hundred forty-three million, two hundred three thousand, one hundred twenty-two".

Divisors: 1 2 3 6 17 34 51 102 1091 2182 3273 6546 18547 37094 55641 109121 111282 218242 327363 654726 1855057 3710114 5565171 11130342 119051011 238102022 357153033 714306066 2023867187 4047734374 6071601561 12143203122