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12581022343 is a prime number
BaseRepresentation
bin10111011011110001…
…10010101010000111
31012110210102011011111
423231320302222013
5201231220203333
65440222545451
7623524632301
oct135570625207
935423364144
1012581022343
11537672832a
122531438287
131256647426
14874c64971
154d97904cd
hex2ede32a87

12581022343 has 2 divisors, whose sum is σ = 12581022344. Its totient is φ = 12581022342.

The previous prime is 12581022341. The next prime is 12581022371. The reversal of 12581022343 is 34322018521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12581022343 - 21 = 12581022341 is a prime.

Together with 12581022341, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12581022341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6290511171 + 6290511172.

It is an arithmetic number, because the mean of its divisors is an integer number (6290511172).

Almost surely, 212581022343 is an apocalyptic number.

12581022343 is a deficient number, since it is larger than the sum of its proper divisors (1).

12581022343 is an equidigital number, since it uses as much as digits as its factorization.

12581022343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 12581022343 in words is "twelve billion, five hundred eighty-one million, twenty-two thousand, three hundred forty-three".