Base | Representation |
---|---|
bin | 111000010110011110… |
… | …0011101011001011001 |
3 | 102120100121112222201221 |
4 | 1300230330131121121 |
5 | 3440313330141331 |
6 | 131332003212041 |
7 | 11512550432431 |
oct | 1605474353131 |
9 | 376317488657 |
10 | 121013130841 |
11 | 47359837339 |
12 | 1b553077021 |
13 | b547071185 |
14 | 5bddb112c1 |
15 | 3233dcc711 |
hex | 1c2cf1d659 |
121013130841 has 2 divisors, whose sum is σ = 121013130842. Its totient is φ = 121013130840.
The previous prime is 121013130839. The next prime is 121013130859. The reversal of 121013130841 is 148031310121.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 100764979225 + 20248151616 = 317435^2 + 142296^2 .
It is a cyclic number.
It is not a de Polignac number, because 121013130841 - 21 = 121013130839 is a prime.
Together with 121013130839, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (121013190841) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506565420 + 60506565421.
It is an arithmetic number, because the mean of its divisors is an integer number (60506565421).
Almost surely, 2121013130841 is an apocalyptic number.
It is an amenable number.
121013130841 is a deficient number, since it is larger than the sum of its proper divisors (1).
121013130841 is an equidigital number, since it uses as much as digits as its factorization.
121013130841 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 576, while the sum is 25.
Adding to 121013130841 its reverse (148031310121), we get a palindrome (269044440962).
The spelling of 121013130841 in words is "one hundred twenty-one billion, thirteen million, one hundred thirty thousand, eight hundred forty-one".
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