Base | Representation |
---|---|
bin | 111101000110111111… |
… | …1000010000110011011 |
3 | 110112201201112010111122 |
4 | 1322031333002012123 |
5 | 4122230132130021 |
6 | 140141534315455 |
7 | 12324013125452 |
oct | 1721577020633 |
9 | 415651463448 |
10 | 131231130011 |
11 | 50722608353 |
12 | 21525058b8b |
13 | c4b4c78427 |
14 | 64ccbbdb99 |
15 | 3630e9cbab |
hex | 1e8dfc219b |
131231130011 has 8 divisors (see below), whose sum is σ = 133062342000. Its totient is φ = 129412591200.
The previous prime is 131231129999. The next prime is 131231130047. The reversal of 131231130011 is 110031132131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131231130011 - 230 = 130157388187 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131231130311) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3147440 + ... + 3188861.
It is an arithmetic number, because the mean of its divisors is an integer number (16632792750).
Almost surely, 2131231130011 is an apocalyptic number.
131231130011 is a deficient number, since it is larger than the sum of its proper divisors (1831211989).
131231130011 is a wasteful number, since it uses less digits than its factorization.
131231130011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6336589.
The product of its (nonzero) digits is 54, while the sum is 17.
Adding to 131231130011 its reverse (110031132131), we get a palindrome (241262262142).
The spelling of 131231130011 in words is "one hundred thirty-one billion, two hundred thirty-one million, one hundred thirty thousand, eleven".
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