Base | Representation |
---|---|
bin | 10110111011011110… |
… | …11011100101011001 |
3 | 1011202220200112221212 |
4 | 23131233123211121 |
5 | 200202343224311 |
6 | 5353304512505 |
7 | 614025255551 |
oct | 133557334531 |
9 | 34686615855 |
10 | 12310133081 |
11 | 5247827204 |
12 | 247677b735 |
13 | 121249c91c |
14 | 84acac161 |
15 | 4c0ad1c8b |
hex | 2ddbdb959 |
12310133081 has 2 divisors, whose sum is σ = 12310133082. Its totient is φ = 12310133080.
The previous prime is 12310133029. The next prime is 12310133123. The reversal of 12310133081 is 18033101321.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 6338707456 + 5971425625 = 79616^2 + 77275^2 .
It is a cyclic number.
It is not a de Polignac number, because 12310133081 - 210 = 12310132057 is a prime.
It is a super-2 number, since 2×123101330812 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (12310133021) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155066540 + 6155066541.
It is an arithmetic number, because the mean of its divisors is an integer number (6155066541).
Almost surely, 212310133081 is an apocalyptic number.
It is an amenable number.
12310133081 is a deficient number, since it is larger than the sum of its proper divisors (1).
12310133081 is an equidigital number, since it uses as much as digits as its factorization.
12310133081 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 432, while the sum is 23.
The spelling of 12310133081 in words is "twelve billion, three hundred ten million, one hundred thirty-three thousand, eighty-one".
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