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13043123101 = 30742485743
BaseRepresentation
bin11000010010110111…
…00100001110011101
31020122222221022020101
430021123210032131
5203203014414401
65554131221101
7641135500651
oct141133441635
936588838211
1013043123101
115593559488
122640147791
1312cb2bcc28
148ba392a61
1551511e101
hex3096e439d

13043123101 has 4 divisors (see below), whose sum is σ = 13085609152. Its totient is φ = 13000637052.

The previous prime is 13043123083. The next prime is 13043123141. The reversal of 13043123101 is 10132134031.

13043123101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13043123101 - 217 = 13042992029 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 (13043123141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21242565 + ... + 21243178.

It is an arithmetic number, because the mean of its divisors is an integer number (3271402288).

Almost surely, 213043123101 is an apocalyptic number.

It is an amenable number.

13043123101 is a deficient number, since it is larger than the sum of its proper divisors (42486051).

13043123101 is an equidigital number, since it uses as much as digits as its factorization.

13043123101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42486050.

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

Adding to 13043123101 its reverse (10132134031), we get a palindrome (23175257132).

The spelling of 13043123101 in words is "thirteen billion, forty-three million, one hundred twenty-three thousand, one hundred one".

Divisors: 1 307 42485743 13043123101