Base | Representation |
---|---|
bin | 111000011100000010… |
… | …1010110011100100001 |
3 | 102120211122012111011211 |
4 | 1300320011112130201 |
5 | 3441204200323131 |
6 | 131402320510121 |
7 | 11520310044604 |
oct | 1607005263441 |
9 | 376748174154 |
10 | 121200011041 |
11 | 4744527918a |
12 | 1b5a577b341 |
13 | b5769b3885 |
14 | 5c1a87a33b |
15 | 32454e45b1 |
hex | 1c38156721 |
121200011041 has 2 divisors, whose sum is σ = 121200011042. Its totient is φ = 121200011040.
The previous prime is 121200011011. The next prime is 121200011081. The reversal of 121200011041 is 140110002121.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 64224230625 + 56975780416 = 253425^2 + 238696^2 .
It is an emirp because it is prime and its reverse (140110002121) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 121200011041 - 231 = 119052527393 is a prime.
It is not a weakly prime, because it can be changed into another prime (121200011011) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600005520 + 60600005521.
It is an arithmetic number, because the mean of its divisors is an integer number (60600005521).
Almost surely, 2121200011041 is an apocalyptic number.
It is an amenable number.
121200011041 is a deficient number, since it is larger than the sum of its proper divisors (1).
121200011041 is an equidigital number, since it uses as much as digits as its factorization.
121200011041 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 121200011041 its reverse (140110002121), we get a palindrome (261310013162).
The spelling of 121200011041 in words is "one hundred twenty-one billion, two hundred million, eleven thousand, forty-one".
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