Base | Representation |
---|---|
bin | 11101110101011000101101… |
… | …011011101011001010100011 |
3 | 122012120202010210112020101112 |
4 | 131311120231123223022203 |
5 | 114144234200324402321 |
6 | 1143021544445253535 |
7 | 36431520001233440 |
oct | 3565305533531243 |
9 | 565522123466345 |
10 | 131212013122211 |
11 | 3889877a79889a |
12 | 128719258642ab |
13 | 582a31694a418 |
14 | 24589a3d5c9c7 |
15 | 10281d3c47a5b |
hex | 77562d6eb2a3 |
131212013122211 has 16 divisors (see below), whose sum is σ = 151876154572800. Its totient is φ = 111028164650208.
The previous prime is 131212013122153. The next prime is 131212013122231. The reversal of 131212013122211 is 112221310212131.
It is a cyclic number.
It is not a de Polignac number, because 131212013122211 - 26 = 131212013122147 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131212013122231) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12774356 + ... + 20630273.
It is an arithmetic number, because the mean of its divisors is an integer number (9492259660800).
Almost surely, 2131212013122211 is an apocalyptic number.
131212013122211 is a deficient number, since it is larger than the sum of its proper divisors (20664141450589).
131212013122211 is an equidigital number, since it uses as much as digits as its factorization.
131212013122211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33411818.
The product of its (nonzero) digits is 288, while the sum is 23.
Adding to 131212013122211 its reverse (112221310212131), we get a palindrome (243433323334342).
The spelling of 131212013122211 in words is "one hundred thirty-one trillion, two hundred twelve billion, thirteen million, one hundred twenty-two thousand, two hundred eleven".
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