Base | Representation |
---|---|
bin | 10110100110001010… |
… | …00000110010100010 |
3 | 1011022110001220022202 |
4 | 23103011000302202 |
5 | 144321044203442 |
6 | 5323434333202 |
7 | 606423563630 |
oct | 132305006242 |
9 | 34273056282 |
10 | 12131241122 |
11 | 5165851010 |
12 | 242688a202 |
13 | 11b43c61b0 |
14 | 831222350 |
15 | 4b0046c32 |
hex | 2d3140ca2 |
12131241122 has 64 divisors (see below), whose sum is σ = 24501657600. Its totient is φ = 4350473280.
The previous prime is 12131241119. The next prime is 12131241127. The reversal of 12131241122 is 22114213121.
It is a super-2 number, since 2×121312411222 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 12131241094 and 12131241103.
It is not an unprimeable number, because it can be changed into a prime (12131241127) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710279 + ... + 727157.
It is an arithmetic number, because the mean of its divisors is an integer number (382838400).
Almost surely, 212131241122 is an apocalyptic number.
12131241122 is an abundant number, since it is smaller than the sum of its proper divisors (12370416478).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12131241122 is a wasteful number, since it uses less digits than its factorization.
12131241122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17271.
The product of its digits is 192, while the sum is 20.
Adding to 12131241122 its reverse (22114213121), we get a palindrome (34245454243).
The spelling of 12131241122 in words is "twelve billion, one hundred thirty-one million, two hundred forty-one thousand, one hundred twenty-two".
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