Base | Representation |
---|---|
bin | 10001101000111000101… |
… | …001000101000001011001 |
3 | 11021212201111110022121212 |
4 | 101220320221011001121 |
5 | 124324421023220131 |
6 | 2324502331312505 |
7 | 153400511045123 |
oct | 21507051050131 |
9 | 4255644408555 |
10 | 1212131070041 |
11 | 428075430611 |
12 | 176b042ab735 |
13 | 8a3c3951068 |
14 | 4294b704213 |
15 | 217e4beba2b |
hex | 11a38a45059 |
1212131070041 has 2 divisors, whose sum is σ = 1212131070042. Its totient is φ = 1212131070040.
The previous prime is 1212131070019. The next prime is 1212131070043. The reversal of 1212131070041 is 1400701312121.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 992892673600 + 219238396441 = 996440^2 + 468229^2 .
It is an emirp because it is prime and its reverse (1400701312121) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1212131070041 - 234 = 1194951200857 is a prime.
Together with 1212131070043, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 1212131069989 and 1212131070016.
It is not a weakly prime, because it can be changed into another prime (1212131070043) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606065535020 + 606065535021.
It is an arithmetic number, because the mean of its divisors is an integer number (606065535021).
Almost surely, 21212131070041 is an apocalyptic number.
It is an amenable number.
1212131070041 is a deficient number, since it is larger than the sum of its proper divisors (1).
1212131070041 is an equidigital number, since it uses as much as digits as its factorization.
1212131070041 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 336, while the sum is 23.
Adding to 1212131070041 its reverse (1400701312121), we get a palindrome (2612832382162).
The spelling of 1212131070041 in words is "one trillion, two hundred twelve billion, one hundred thirty-one million, seventy thousand, forty-one".
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