| Base | Representation |
|---|---|
| bin | 111000011111000101… |
| … | …1001110000110100110 |
| 3 | 102121002202111212221200 |
| 4 | 1300332023032012212 |
| 5 | 3441411331304110 |
| 6 | 131420411223330 |
| 7 | 11522660540565 |
| oct | 1607613160646 |
| 9 | 377082455850 |
| 10 | 121302213030 |
| 11 | 47497a34039 |
| 12 | 1b613a47b46 |
| 13 | b591c1871b |
| 14 | 5c2a281bdc |
| 15 | 324e4816c0 |
| hex | 1c3e2ce1a6 |
121302213030 has 96 divisors (see below), whose sum is σ = 324054285984. Its totient is φ = 31458958848.
The previous prime is 121302212963. The next prime is 121302213041. The reversal of 121302213030 is 30312203121.
121302213030 is a `hidden beast` number, since 12 + 130 + 221 + 303 + 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 = 121302212994 and 121302213012.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8927602 + ... + 8941178.
It is an arithmetic number, because the mean of its divisors is an integer number (3375565479).
Almost surely, 2121302213030 is an apocalyptic number.
121302213030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 121302213030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162027142992).
121302213030 is an abundant number, since it is smaller than the sum of its proper divisors (202752072954).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121302213030 is a wasteful number, since it uses less digits than its factorization.
121302213030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16310 (or 16307 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 121302213030 its reverse (30312203121), we get a palindrome (151614416151).
Subtracting from 121302213030 its reverse (30312203121), we obtain a palindrome (90990009909).
The spelling of 121302213030 in words is "one hundred twenty-one billion, three hundred two million, two hundred thirteen thousand, thirty".
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