Base | Representation |
---|---|
bin | 10110101111111100… |
… | …00101001101111011 |
3 | 1011112011111110010002 |
4 | 23113332011031323 |
5 | 200003101412311 |
6 | 5335525343215 |
7 | 611441265515 |
oct | 132776051573 |
9 | 34464443102 |
10 | 12213310331 |
11 | 51a8105902 |
12 | 244a267b0b |
13 | 11c83cc361 |
14 | 83c0a6bb5 |
15 | 4b735893b |
hex | 2d7f8537b |
12213310331 has 2 divisors, whose sum is σ = 12213310332. Its totient is φ = 12213310330.
The previous prime is 12213310313. The next prime is 12213310367. The reversal of 12213310331 is 13301331221.
Together with previous prime (12213310313) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is an emirp because it is prime and its reverse (13301331221) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12213310331 - 230 = 11139568507 is a prime.
It is a super-2 number, since 2×122133103312 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (12213310231) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106655165 + 6106655166.
It is an arithmetic number, because the mean of its divisors is an integer number (6106655166).
Almost surely, 212213310331 is an apocalyptic number.
12213310331 is a deficient number, since it is larger than the sum of its proper divisors (1).
12213310331 is an equidigital number, since it uses as much as digits as its factorization.
12213310331 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 324, while the sum is 20.
Adding to 12213310331 its reverse (13301331221), we get a palindrome (25514641552).
The spelling of 12213310331 in words is "twelve billion, two hundred thirteen million, three hundred ten thousand, three hundred thirty-one".
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