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12311330001 = 34103776667
BaseRepresentation
bin10110111011100111…
…11111110011010001
31011202222221100211020
423131303333303101
5200203200030001
65353350310053
7614041402245
oct133563776321
934688840736
1012311330001
1152484744a3
122477058329
1312127cb669
1484b100425
154c0c6b736
hex2ddcffcd1

12311330001 has 4 divisors (see below), whose sum is σ = 16415106672. Its totient is φ = 8207553332.

The previous prime is 12311329969. The next prime is 12311330023. The reversal of 12311330001 is 10003311321.

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 12311330001 - 25 = 12311329969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12311330081) 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, 2051888331 + ... + 2051888336.

It is an arithmetic number, because the mean of its divisors is an integer number (4103776668).

Almost surely, 212311330001 is an apocalyptic number.

It is an amenable number.

12311330001 is a deficient number, since it is larger than the sum of its proper divisors (4103776671).

12311330001 is an equidigital number, since it uses as much as digits as its factorization.

12311330001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103776670.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 12311330001 its reverse (10003311321), we get a palindrome (22314641322).

The spelling of 12311330001 in words is "twelve billion, three hundred eleven million, three hundred thirty thousand, one".

Divisors: 1 3 4103776667 12311330001