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12103330131 = 322773948481
BaseRepresentation
bin10110100010110101…
…00010100101010011
31011020111112212122100
423101122202211103
5144241423031011
65321000211443
7605634415524
oct132132424523
934214485570
1012103330131
115151018082
122419469b83
1311ab6a3009
1482b63884b
154ac881d56
hex2d16a2953

12103330131 has 12 divisors (see below), whose sum is σ = 17483578840. Its totient is φ = 8068429440.

The previous prime is 12103330111. The next prime is 12103330153. The reversal of 12103330131 is 13103330121.

It is a happy number.

It is not a de Polignac number, because 12103330131 - 210 = 12103329107 is a prime.

It is a super-2 number, since 2×121033301312 (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 (12103330111) 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, 225411 + ... + 273891.

Almost surely, 212103330131 is an apocalyptic number.

12103330131 is a deficient number, since it is larger than the sum of its proper divisors (5380248709).

12103330131 is a wasteful number, since it uses less digits than its factorization.

12103330131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76226 (or 76223 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 12103330131 its reverse (13103330121), we get a palindrome (25206660252).

The spelling of 12103330131 in words is "twelve billion, one hundred three million, three hundred thirty thousand, one hundred thirty-one".

Divisors: 1 3 9 27739 48481 83217 145443 249651 436329 1344814459 4034443377 12103330131