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12123202000 = 2453713591129
BaseRepresentation
bin10110100101001100…
…10110000111010000
31011021212221110201111
423102212112013100
5144312014431000
65322550143104
7606265342150
oct132246260720
934255843644
1012123202000
115161260108
122424051a94
1311b2840010
1483012c760
154ae4a9cba
hex2d29961d0

12123202000 has 320 divisors, whose sum is σ = 36722649600. Its totient is φ = 3768422400.

The previous prime is 12123201989. The next prime is 12123202009. The reversal of 12123202000 is 20232121.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123202009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10737436 + ... + 10738564.

It is an arithmetic number, because the mean of its divisors is an integer number (114758280).

Almost surely, 212123202000 is an apocalyptic number.

12123202000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12123202000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18361324800).

12123202000 is an abundant number, since it is smaller than the sum of its proper divisors (24599447600).

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

12123202000 is a wasteful number, since it uses less digits than its factorization.

12123202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231 (or 1215 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12123202000 its reverse (20232121), we get a palindrome (12143434121).

The spelling of 12123202000 in words is "twelve billion, one hundred twenty-three million, two hundred two thousand".