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12231223103 = 111111929373
BaseRepresentation
bin10110110010000100…
…11010011100111111
31011120102012111211002
423121002122130333
5200022143114403
65341405320515
7612046452401
oct133102323477
934512174732
1012231223103
11520722aa50
12245426613b
1311cc031728
1484060ab71
154b8be6188
hex2d909a73f

12231223103 has 4 divisors (see below), whose sum is σ = 13343152488. Its totient is φ = 11119293720.

The previous prime is 12231223099. The next prime is 12231223127. The reversal of 12231223103 is 30132213221.

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 12231223103 - 22 = 12231223099 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 (12231223133) 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 in 3 ways as a sum of consecutive naturals, for example, 555964676 + ... + 555964697.

It is an arithmetic number, because the mean of its divisors is an integer number (3335788122).

Almost surely, 212231223103 is an apocalyptic number.

12231223103 is a deficient number, since it is larger than the sum of its proper divisors (1111929385).

12231223103 is a wasteful number, since it uses less digits than its factorization.

12231223103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111929384.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12231223103 its reverse (30132213221), we get a palindrome (42363436324).

The spelling of 12231223103 in words is "twelve billion, two hundred thirty-one million, two hundred twenty-three thousand, one hundred three".

Divisors: 1 11 1111929373 12231223103