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12287243411071 = 15181372472921
BaseRepresentation
bin1011001011001101100011…
…0001110101111001111111
31121111122112010020021021221
42302303120301311321333
53102303233303123241
642044403125134211
72405503226510446
oct262633061657177
947448463207257
1012287243411071
113a07a9963a022
121465424b5a367
136b18b36c3105
143069c4837d5d
1516494570e5d1
hexb2cd8c75e7f

12287243411071 has 4 divisors (see below), whose sum is σ = 12368615884144. Its totient is φ = 12205870938000.

The previous prime is 12287243411029. The next prime is 12287243411087. The reversal of 12287243411071 is 17011434278221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12287243411071 - 213 = 12287243402879 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 (12287243411021) 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, 40686236310 + ... + 40686236611.

It is an arithmetic number, because the mean of its divisors is an integer number (3092153971036).

Almost surely, 212287243411071 is an apocalyptic number.

12287243411071 is a deficient number, since it is larger than the sum of its proper divisors (81372473073).

12287243411071 is an equidigital number, since it uses as much as digits as its factorization.

12287243411071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81372473072.

The product of its (nonzero) digits is 150528, while the sum is 43.

Adding to 12287243411071 its reverse (17011434278221), we get a palindrome (29298677689292).

The spelling of 12287243411071 in words is "twelve trillion, two hundred eighty-seven billion, two hundred forty-three million, four hundred eleven thousand, seventy-one".

Divisors: 1 151 81372472921 12287243411071