| Base | Representation |
|---|---|
| bin | 111000010110001101… |
| … | …0100011100010011100 |
| 3 | 102120022222211110001100 |
| 4 | 1300230122203202130 |
| 5 | 3440304041234400 |
| 6 | 131331044513100 |
| 7 | 11512412044566 |
| oct | 1605432434234 |
| 9 | 376288743040 |
| 10 | 121004243100 |
| 11 | 473548168a4 |
| 12 | 1b5500ab790 |
| 13 | b54527b960 |
| 14 | 5bdc87a336 |
| 15 | 3233224100 |
| hex | 1c2c6a389c |
121004243100 has 216 divisors, whose sum is σ = 409985634240. Its totient is φ = 29674160640.
The previous prime is 121004243057. The next prime is 121004243141. The reversal of 121004243100 is 1342400121.
121004243100 is a `hidden beast` number, since 1 + 210 + 0 + 424 + 31 + 0 + 0 = 666.
121004243100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×1210042431002 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
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 71 ways as a sum of consecutive naturals, for example, 3128077 + ... + 3166523.
It is an arithmetic number, because the mean of its divisors is an integer number (1898081640).
Almost surely, 2121004243100 is an apocalyptic number.
121004243100 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 121004243100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204992817120).
121004243100 is an abundant number, since it is smaller than the sum of its proper divisors (288981391140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121004243100 is a wasteful number, since it uses less digits than its factorization.
121004243100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38749 (or 38739 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 121004243100 its reverse (1342400121), we get a palindrome (122346643221).
The spelling of 121004243100 in words is "one hundred twenty-one billion, four million, two hundred forty-three thousand, one hundred".
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