Base | Representation |
---|---|
bin | 10110100110000010… |
… | …11101011111011111 |
3 | 1011022101022121012212 |
4 | 23103001131133133 |
5 | 144320324410421 |
6 | 5323402351035 |
7 | 606412635413 |
oct | 132301353737 |
9 | 34271277185 |
10 | 12130310111 |
11 | 5165275587 |
12 | 24264bb47b |
13 | 11b415b4ba |
14 | 83105cd43 |
15 | 4aee10e5b |
hex | 2d305d7df |
12130310111 has 4 divisors (see below), whose sum is σ = 12130559424. Its totient is φ = 12130060800.
The previous prime is 12130310051. The next prime is 12130310119. The reversal of 12130310111 is 11101303121.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11101303121 = 211 ⋅52612811.
It is a cyclic number.
It is not a de Polignac number, because 12130310111 - 214 = 12130293727 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12130310119) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25250 + ... + 157791.
It is an arithmetic number, because the mean of its divisors is an integer number (3032639856).
Almost surely, 212130310111 is an apocalyptic number.
12130310111 is a deficient number, since it is larger than the sum of its proper divisors (249313).
12130310111 is an equidigital number, since it uses as much as digits as its factorization.
12130310111 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 249312.
The product of its (nonzero) digits is 18, while the sum is 14.
Adding to 12130310111 its reverse (11101303121), we get a palindrome (23231613232).
The spelling of 12130310111 in words is "twelve billion, one hundred thirty million, three hundred ten thousand, one hundred eleven".
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