Base | Representation |
---|---|
bin | 111101000110101010… |
… | …0111101101111101111 |
3 | 110112200221202212002111 |
4 | 1322031110331233233 |
5 | 4122214321232002 |
6 | 140140502104451 |
7 | 12323520315262 |
oct | 1721524755757 |
9 | 415627685074 |
10 | 131220102127 |
11 | 507173659a4 |
12 | 2152141b127 |
13 | c4b28b6a5a |
14 | 64cb54ccd9 |
15 | 36300203d7 |
hex | 1e8d53dbef |
131220102127 has 2 divisors, whose sum is σ = 131220102128. Its totient is φ = 131220102126.
The previous prime is 131220102109. The next prime is 131220102137. The reversal of 131220102127 is 721201022131.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 131220102127 - 215 = 131220069359 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 131220102098 and 131220102107.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131220102107) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65610051063 + 65610051064.
It is an arithmetic number, because the mean of its divisors is an integer number (65610051064).
Almost surely, 2131220102127 is an apocalyptic number.
131220102127 is a deficient number, since it is larger than the sum of its proper divisors (1).
131220102127 is an equidigital number, since it uses as much as digits as its factorization.
131220102127 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 336, while the sum is 22.
Adding to 131220102127 its reverse (721201022131), we get a palindrome (852421124258).
The spelling of 131220102127 in words is "one hundred thirty-one billion, two hundred twenty million, one hundred two thousand, one hundred twenty-seven".
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