| Base | Representation |
|---|---|
| bin | 10110111100110011… |
| … | …10001010010010100 |
| 3 | 1011210200120102211200 |
| 4 | 23132121301102110 |
| 5 | 200213213411040 |
| 6 | 5354342432500 |
| 7 | 614221513146 |
| oct | 133631612224 |
| 9 | 34720512750 |
| 10 | 12321232020 |
| 11 | 5253017a89 |
| 12 | 247a432730 |
| 13 | 1214887746 |
| 14 | 84c55ac96 |
| 15 | 4c1a75630 |
| hex | 2de671494 |
12321232020 has 144 divisors (see below), whose sum is σ = 39114496512. Its totient is φ = 3133532160.
The previous prime is 12321231983. The next prime is 12321232037. The reversal of 12321232020 is 2023212321.
12321232020 is a `hidden beast` number, since 1 + 2 + 321 + 2 + 320 + 20 = 666.
12321232020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 12321231984 and 12321232002.
It is a congruent number.
It is an unprimeable number.
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 47 ways as a sum of consecutive naturals, for example, 1457205 + ... + 1465635.
It is an arithmetic number, because the mean of its divisors is an integer number (271628448).
Almost surely, 212321232020 is an apocalyptic number.
12321232020 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 12321232020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19557248256).
12321232020 is an abundant number, since it is smaller than the sum of its proper divisors (26793264492).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12321232020 is a wasteful number, since it uses less digits than its factorization.
12321232020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8822 (or 8817 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 12321232020 its reverse (2023212321), we get a palindrome (14344444341).
The spelling of 12321232020 in words is "twelve billion, three hundred twenty-one million, two hundred thirty-two thousand, twenty".
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