Base | Representation |
---|---|
bin | 111000110110111001… |
… | …0011000111011010011 |
3 | 102200011102120222120111 |
4 | 1301231302120323103 |
5 | 4000030324311011 |
6 | 132031544222151 |
7 | 11551530314242 |
oct | 1615562307323 |
9 | 380142528514 |
10 | 122101010131 |
11 | 47867923131 |
12 | 1b7b746a957 |
13 | b68b569c29 |
14 | 5ca43b6959 |
15 | 329966c121 |
hex | 1c6dc98ed3 |
122101010131 has 2 divisors, whose sum is σ = 122101010132. Its totient is φ = 122101010130.
The previous prime is 122101010123. The next prime is 122101010147. The reversal of 122101010131 is 131010101221.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 122101010131 - 23 = 122101010123 is a prime.
It is a super-2 number, since 2×1221010101312 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (122101010191) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61050505065 + 61050505066.
It is an arithmetic number, because the mean of its divisors is an integer number (61050505066).
Almost surely, 2122101010131 is an apocalyptic number.
122101010131 is a deficient number, since it is larger than the sum of its proper divisors (1).
122101010131 is an equidigital number, since it uses as much as digits as its factorization.
122101010131 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 12, while the sum is 13.
Adding to 122101010131 its reverse (131010101221), we get a palindrome (253111111352).
The spelling of 122101010131 in words is "one hundred twenty-two billion, one hundred one million, ten thousand, one hundred thirty-one".
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