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12311313101 = 43286309607
BaseRepresentation
bin10110111011100111…
…11011101011001101
31011202222220111122022
423131303323223031
5200203144004401
65353350055525
7614041302053
oct133563735315
934688814568
1012311313101
11524846282a
12247704a5a5
1312127c3a69
1484b0d81d3
154c0c6671b
hex2ddcfbacd

12311313101 has 4 divisors (see below), whose sum is σ = 12597622752. Its totient is φ = 12025003452.

The previous prime is 12311313097. The next prime is 12311313121. The reversal of 12311313101 is 10131311321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12311313101 - 22 = 12311313097 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 12311313101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311313121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143154761 + ... + 143154846.

It is an arithmetic number, because the mean of its divisors is an integer number (3149405688).

Almost surely, 212311313101 is an apocalyptic number.

It is an amenable number.

12311313101 is a deficient number, since it is larger than the sum of its proper divisors (286309651).

12311313101 is an equidigital number, since it uses as much as digits as its factorization.

12311313101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286309650.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 12311313101 its reverse (10131311321), we get a palindrome (22442624422).

It can be divided in two parts, 12 and 311313101, that added together give a palindrome (311313113).

The spelling of 12311313101 in words is "twelve billion, three hundred eleven million, three hundred thirteen thousand, one hundred one".

Divisors: 1 43 286309607 12311313101