| Base | Representation |
|---|---|
| bin | 1011001011111101001011… |
| … | …1111110110001110111100 |
| 3 | 1121112212112022221101220100 |
| 4 | 2302333102333312032330 |
| 5 | 3103010431004233040 |
| 6 | 42054320102321100 |
| 7 | 2406435146114652 |
| oct | 262772277661674 |
| 9 | 47485468841810 |
| 10 | 12300031321020 |
| 11 | 3a12461024043 |
| 12 | 14679b3729190 |
| 13 | 6b2b70b66831 |
| 14 | 307478d54dd2 |
| 15 | 164e43219b30 |
| hex | b2fd2ff63bc |
12300031321020 has 144 divisors (see below), whose sum is σ = 37875173761152. Its totient is φ = 3230459366400.
The previous prime is 12300031320959. The next prime is 12300031321049. The reversal of 12300031321020 is 2012313000321.
12300031321020 is a `hidden beast` number, since 12 + 300 + 0 + 31 + 321 + 0 + 2 + 0 = 666.
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 = 12300031320984 and 12300031321002.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8543469 + ... + 9878811.
It is an arithmetic number, because the mean of its divisors is an integer number (263022040008).
Almost surely, 212300031321020 is an apocalyptic number.
12300031321020 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 12300031321020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18937586880576).
12300031321020 is an abundant number, since it is smaller than the sum of its proper divisors (25575142440132).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12300031321020 is a wasteful number, since it uses less digits than its factorization.
12300031321020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1336132 (or 1336127 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 12300031321020 its reverse (2012313000321), we get a palindrome (14312344321341).
The spelling of 12300031321020 in words is "twelve trillion, three hundred billion, thirty-one million, three hundred twenty-one thousand, twenty".
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