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12103213113 = 322714962367
BaseRepresentation
bin10110100010110100…
…00110000000111001
31011020111022221010100
423101122012000321
5144241410304423
65320553510013
7605633420415
oct132132060071
934214287110
1012103213113
115150a48172
122419412309
1311ab661984
1482b607d45
154ac85c343
hex2d1686039

12103213113 has 12 divisors (see below), whose sum is σ = 17546933248. Its totient is φ = 8039032920.

The previous prime is 12103213081. The next prime is 12103213127. The reversal of 12103213113 is 31131230121.

It is not a de Polignac number, because 12103213113 - 25 = 12103213081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12103213163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2478745 + ... + 2483622.

Almost surely, 212103213113 is an apocalyptic number.

It is an amenable number.

12103213113 is a deficient number, since it is larger than the sum of its proper divisors (5443720135).

12103213113 is a wasteful number, since it uses less digits than its factorization.

12103213113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4962644 (or 4962641 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12103213113 its reverse (31131230121), we get a palindrome (43234443234).

The spelling of 12103213113 in words is "twelve billion, one hundred three million, two hundred thirteen thousand, one hundred thirteen".

Divisors: 1 3 9 271 813 2439 4962367 14887101 44661303 1344801457 4034404371 12103213113