Base | Representation |
---|---|
bin | 10110111011110101… |
… | …11110111000110111 |
3 | 1011210010101101212001 |
4 | 23131322332320313 |
5 | 200204132130041 |
6 | 5353453440131 |
7 | 614063100235 |
oct | 133572767067 |
9 | 34703341761 |
10 | 12313161271 |
11 | 5249505344 |
12 | 24777a0047 |
13 | 1212cc0058 |
14 | 84b459955 |
15 | 4c0ece131 |
hex | 2ddebee37 |
12313161271 has 2 divisors, whose sum is σ = 12313161272. Its totient is φ = 12313161270.
The previous prime is 12313161229. The next prime is 12313161307. The reversal of 12313161271 is 17216131321.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12313161271 - 223 = 12304772663 is a prime.
It is a super-2 number, since 2×123131612712 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12313161221) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156580635 + 6156580636.
It is an arithmetic number, because the mean of its divisors is an integer number (6156580636).
Almost surely, 212313161271 is an apocalyptic number.
12313161271 is a deficient number, since it is larger than the sum of its proper divisors (1).
12313161271 is an equidigital number, since it uses as much as digits as its factorization.
12313161271 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1512, while the sum is 28.
Adding to 12313161271 its reverse (17216131321), we get a palindrome (29529292592).
The spelling of 12313161271 in words is "twelve billion, three hundred thirteen million, one hundred sixty-one thousand, two hundred seventy-one".
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