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13103343109 is a prime number
BaseRepresentation
bin11000011010000010…
…10010011000000101
31020211012020210120001
430031001102120011
5203313423434414
610004122041301
7642466402333
oct141501223005
936735223501
1013103343109
11561454a68a
122658349231
13130a91607c
148c438ab53
1551a567074
hex30d052605

13103343109 has 2 divisors, whose sum is σ = 13103343110. Its totient is φ = 13103343108.

The previous prime is 13103343107. The next prime is 13103343119. The reversal of 13103343109 is 90134330131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7490037025 + 5613306084 = 86545^2 + 74922^2 .

It is a cyclic number.

It is not a de Polignac number, because 13103343109 - 21 = 13103343107 is a prime.

Together with 13103343107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13103343101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6551671554 + 6551671555.

It is an arithmetic number, because the mean of its divisors is an integer number (6551671555).

Almost surely, 213103343109 is an apocalyptic number.

It is an amenable number.

13103343109 is a deficient number, since it is larger than the sum of its proper divisors (1).

13103343109 is an equidigital number, since it uses as much as digits as its factorization.

13103343109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 13103343109 in words is "thirteen billion, one hundred three million, three hundred forty-three thousand, one hundred nine".