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12313330013 = 35173501089
BaseRepresentation
bin10110111011110111…
…01000000101011101
31011210010200222022202
423131323220011131
5200204203030023
65353501221245
7614064402215
oct133573500535
934703628282
1012313330013
1152496100a6
122477861825
13121304baba
1484b4a1245
154c1014128
hex2ddee815d

12313330013 has 4 divisors (see below), whose sum is σ = 12316834620. Its totient is φ = 12309825408.

The previous prime is 12313329997. The next prime is 12313330021. The reversal of 12313330013 is 31003331321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31003331321 = 231347970927.

It can be written as a sum of positive squares in 2 ways, for example, as 10235975929 + 2077354084 = 101173^2 + 45578^2 .

It is a cyclic number.

It is not a de Polignac number, because 12313330013 - 24 = 12313329997 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 (12313330213) 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, 1747028 + ... + 1754061.

It is an arithmetic number, because the mean of its divisors is an integer number (3079208655).

Almost surely, 212313330013 is an apocalyptic number.

It is an amenable number.

12313330013 is a deficient number, since it is larger than the sum of its proper divisors (3504607).

12313330013 is an equidigital number, since it uses as much as digits as its factorization.

12313330013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504606.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 12313330013 its reverse (31003331321), we get a palindrome (43316661334).

The spelling of 12313330013 in words is "twelve billion, three hundred thirteen million, three hundred thirty thousand, thirteen".

Divisors: 1 3517 3501089 12313330013