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12102123102 = 2316312374359
BaseRepresentation
bin10110100010101011…
…11011111001011110
31011020102021112220120
423101111323321132
5144241120414402
65320514255410
7605621230506
oct132125737136
934212245816
1012102123102
115150373233
122418b87566
1311ab36c7b4
1482b402a06
154ac6e43bc
hex2d157be5e

12102123102 has 16 divisors (see below), whose sum is σ = 24352740480. Its totient is φ = 4009291992.

The previous prime is 12102123097. The next prime is 12102123113. The reversal of 12102123102 is 20132120121.

It is a super-2 number, since 2×121021231022 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6186202 + ... + 6188157.

It is an arithmetic number, because the mean of its divisors is an integer number (1522046280).

Almost surely, 212102123102 is an apocalyptic number.

12102123102 is an abundant number, since it is smaller than the sum of its proper divisors (12250617378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12102123102 is a wasteful number, since it uses less digits than its factorization.

12102123102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12374527.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12102123102 its reverse (20132120121), we get a palindrome (32234243223).

The spelling of 12102123102 in words is "twelve billion, one hundred two million, one hundred twenty-three thousand, one hundred two".

Divisors: 1 2 3 6 163 326 489 978 12374359 24748718 37123077 74246154 2017020517 4034041034 6051061551 12102123102