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12301312123 = 412331287691
BaseRepresentation
bin10110111010011011…
…10010000001111011
31011202022002101212201
423131031302001323
5200143113441443
65352351451031
7613560266512
oct133515620173
934668071781
1012301312123
115242851961
122473826a77
131210701919
14849a53679
154bee3d34d
hex2dd37207b

12301312123 has 8 divisors (see below), whose sum is σ = 12655436976. Its totient is φ = 11949763200.

The previous prime is 12301312109. The next prime is 12301312129. The reversal of 12301312123 is 32121310321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12301312123 - 217 = 12301181051 is a prime.

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 12301312123.

It is not an unprimeable number, because it can be changed into a prime (12301312129) 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 7 ways as a sum of consecutive naturals, for example, 634293 + ... + 653398.

It is an arithmetic number, because the mean of its divisors is an integer number (1581929622).

Almost surely, 212301312123 is an apocalyptic number.

12301312123 is a deficient number, since it is larger than the sum of its proper divisors (354124853).

12301312123 is a wasteful number, since it uses less digits than its factorization.

12301312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287965.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12301312123 its reverse (32121310321), we get a palindrome (44422622444).

The spelling of 12301312123 in words is "twelve billion, three hundred one million, three hundred twelve thousand, one hundred twenty-three".

Divisors: 1 41 233 9553 1287691 52795331 300032003 12301312123