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13100000123 = 75443343823
BaseRepresentation
bin11000011001101001…
…00010001101111011
31020210221221221211202
430030310202031323
5203312100000443
610003522244415
7642426110120
oct141464421573
936727857752
1013100000123
115612676a91
1226571b670b
13130a015582
148c3b5a747
1551a1067b8
hex30cd2237b

13100000123 has 8 divisors (see below), whose sum is σ = 14974222848. Its totient is φ = 11226475944.

The previous prime is 13100000117. The next prime is 13100000149. The reversal of 13100000123 is 32100000131.

13100000123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13100000123 - 24 = 13100000107 is a prime.

It is a super-2 number, since 2×131000001232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13100006123) 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 7 ways as a sum of consecutive naturals, for example, 133811 + ... + 210012.

It is an arithmetic number, because the mean of its divisors is an integer number (1871777856).

Almost surely, 213100000123 is an apocalyptic number.

13100000123 is a deficient number, since it is larger than the sum of its proper divisors (1874222725).

13100000123 is an equidigital number, since it uses as much as digits as its factorization.

13100000123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349273.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 13100000123 its reverse (32100000131), we get a palindrome (45200000254).

The spelling of 13100000123 in words is "thirteen billion, one hundred million, one hundred twenty-three", and thus it is an aban number.

Divisors: 1 7 5443 38101 343823 2406761 1871428589 13100000123