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12123000122 = 2192137149287
BaseRepresentation
bin10110100101001011…
…00100110100111010
31011021212120012210112
423102211210310322
5144311442000442
65322541544322
7606263541452
oct132245446472
934255505715
1012123000122
115161132472
122423b750a2
1311b279c16c
148300b8d62
154ae46a082
hex2d2964d3a

12123000122 has 16 divisors (see below), whose sum is σ = 19150664640. Its totient is φ = 5739748128.

The previous prime is 12123000121. The next prime is 12123000157. The reversal of 12123000122 is 22100032121.

It is a happy number.

12123000122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12123000097 and 12123000106.

It is not an unprimeable number, because it can be changed into a prime (12123000121) 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 7 ways as a sum of consecutive naturals, for example, 6563 + ... + 155849.

It is an arithmetic number, because the mean of its divisors is an integer number (1196916540).

Almost surely, 212123000122 is an apocalyptic number.

12123000122 is a deficient number, since it is larger than the sum of its proper divisors (7027664518).

12123000122 is a wasteful number, since it uses less digits than its factorization.

12123000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151445.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12123000122 its reverse (22100032121), we get a palindrome (34223032243).

The spelling of 12123000122 in words is "twelve billion, one hundred twenty-three million, one hundred twenty-two", and thus it is an aban number.

Divisors: 1 2 19 38 2137 4274 40603 81206 149287 298574 2836453 5672906 319026319 638052638 6061500061 12123000122