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12112323102 = 2321189687341
BaseRepresentation
bin10110100011111001…
…10110001000011110
31011021010110202200100
423101330312020132
5144301223314402
65321521041530
7606104022225
oct132174661036
934233422610
1012112323102
1151560aa690
1224204862a6
1311b05013b9
1482c8d9cbc
154ad55b71c
hex2d1f3621e

12112323102 has 48 divisors (see below), whose sum is σ = 28950845040. Its totient is φ = 3629155200.

The previous prime is 12112323079. The next prime is 12112323103. The reversal of 12112323102 is 20132321121.

12112323102 is a `hidden beast` number, since 121 + 1 + 232 + 310 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112323103) 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, 326049 + ... + 361292.

It is an arithmetic number, because the mean of its divisors is an integer number (603142605).

Almost surely, 212112323102 is an apocalyptic number.

12112323102 is an abundant number, since it is smaller than the sum of its proper divisors (16838521938).

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

12112323102 is a wasteful number, since it uses less digits than its factorization.

12112323102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687449 (or 687446 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12112323102 its reverse (20132321121), we get a palindrome (32244644223).

The spelling of 12112323102 in words is "twelve billion, one hundred twelve million, three hundred twenty-three thousand, one hundred two".

Divisors: 1 2 3 6 9 11 18 22 33 66 89 99 178 198 267 534 801 979 1602 1958 2937 5874 8811 17622 687341 1374682 2062023 4124046 6186069 7560751 12372138 15121502 22682253 45364506 61173349 68046759 122346698 136093518 183520047 367040094 550560141 672906839 1101120282 1345813678 2018720517 4037441034 6056161551 12112323102