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12232103281 is a prime number
BaseRepresentation
bin10110110010001011…
…10001010101110001
31011120110212020012021
423121011301111301
5200022404301111
65341440231441
7612060106456
oct133105612561
934513766167
1012232103281
115207781272
12245460b581
1311cc27c248
1484079982d
154b8d1bd71
hex2d9171571

12232103281 has 2 divisors, whose sum is σ = 12232103282. Its totient is φ = 12232103280.

The previous prime is 12232103243. The next prime is 12232103311. The reversal of 12232103281 is 18230123221.

12232103281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11028360256 + 1203743025 = 105016^2 + 34695^2 .

It is a cyclic number.

It is not a de Polignac number, because 12232103281 - 219 = 12231578993 is a prime.

It is a super-2 number, since 2×122321032812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12232103881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116051640 + 6116051641.

It is an arithmetic number, because the mean of its divisors is an integer number (6116051641).

Almost surely, 212232103281 is an apocalyptic number.

It is an amenable number.

12232103281 is a deficient number, since it is larger than the sum of its proper divisors (1).

12232103281 is an equidigital number, since it uses as much as digits as its factorization.

12232103281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 12232103281 in words is "twelve billion, two hundred thirty-two million, one hundred three thousand, two hundred eighty-one".