Base | Representation |
---|---|
bin | 10110110010000100… |
… | …00011110001100101 |
3 | 1011120102000210101201 |
4 | 23121002003301211 |
5 | 200022132131323 |
6 | 5341403322501 |
7 | 612045614521 |
oct | 133102036145 |
9 | 34512023351 |
10 | 12231130213 |
11 | 5207177185 |
12 | 2454220431 |
13 | 11cbccb373 |
14 | 8405c4d81 |
15 | 4b8bc88ad |
hex | 2d9083c65 |
12231130213 has 2 divisors, whose sum is σ = 12231130214. Its totient is φ = 12231130212.
The previous prime is 12231130201. The next prime is 12231130229. The reversal of 12231130213 is 31203113221.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 7639983649 + 4591146564 = 87407^2 + 67758^2 .
It is a cyclic number.
It is not a de Polignac number, because 12231130213 - 213 = 12231122021 is a prime.
It is a super-2 number, since 2×122311302132 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12231130273) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115565106 + 6115565107.
It is an arithmetic number, because the mean of its divisors is an integer number (6115565107).
Almost surely, 212231130213 is an apocalyptic number.
It is an amenable number.
12231130213 is a deficient number, since it is larger than the sum of its proper divisors (1).
12231130213 is an equidigital number, since it uses as much as digits as its factorization.
12231130213 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 12231130213 its reverse (31203113221), we get a palindrome (43434243434).
The spelling of 12231130213 in words is "twelve billion, two hundred thirty-one million, one hundred thirty thousand, two hundred thirteen".
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