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12460271281 is a prime number
BaseRepresentation
bin10111001101011000…
…01010011010110001
31012011101012100211221
423212230022122301
5201004312140111
65420230505041
7620530362343
oct134654123261
935141170757
1012460271281
115314553267
1224b8b05181
1312376196b3
14862bd1293
154cdd8c371
hex2e6b0a6b1

12460271281 has 2 divisors, whose sum is σ = 12460271282. Its totient is φ = 12460271280.

The previous prime is 12460271249. The next prime is 12460271297. The reversal of 12460271281 is 18217206421.

12460271281 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., 12435818256 + 24453025 = 111516^2 + 4945^2 .

It is a cyclic number.

It is not a de Polignac number, because 12460271281 - 25 = 12460271249 is a prime.

It is a super-2 number, since 2×124602712812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12460241281) 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, 6230135640 + 6230135641.

It is an arithmetic number, because the mean of its divisors is an integer number (6230135641).

Almost surely, 212460271281 is an apocalyptic number.

It is an amenable number.

12460271281 is a deficient number, since it is larger than the sum of its proper divisors (1).

12460271281 is an equidigital number, since it uses as much as digits as its factorization.

12460271281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 34.

The spelling of 12460271281 in words is "twelve billion, four hundred sixty million, two hundred seventy-one thousand, two hundred eighty-one".