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12134324431 = 14981438419
BaseRepresentation
bin10110100110100001…
…10001100011001111
31011022122212112211101
423103100301203033
5144322341340211
65324024403531
7606462025105
oct132320614317
934278775741
1012134324431
1151675675a9
1224279165a7
1311b4c35738
148317c5c75
154b04555c1
hex2d34318cf

12134324431 has 4 divisors (see below), whose sum is σ = 12215763000. Its totient is φ = 12052885864.

The previous prime is 12134324417. The next prime is 12134324443. The reversal of 12134324431 is 13442343121.

It is a happy number.

12134324431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12134324431 - 25 = 12134324399 is a prime.

It is a super-2 number, since 2×121343244312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12134324431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12134324131) 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 in 3 ways as a sum of consecutive naturals, for example, 40719061 + ... + 40719358.

It is an arithmetic number, because the mean of its divisors is an integer number (3053940750).

Almost surely, 212134324431 is an apocalyptic number.

12134324431 is a deficient number, since it is larger than the sum of its proper divisors (81438569).

12134324431 is an equidigital number, since it uses as much as digits as its factorization.

12134324431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81438568.

The product of its digits is 6912, while the sum is 28.

Adding to 12134324431 its reverse (13442343121), we get a palindrome (25576667552).

The spelling of 12134324431 in words is "twelve billion, one hundred thirty-four million, three hundred twenty-four thousand, four hundred thirty-one".

Divisors: 1 149 81438419 12134324431