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102102112122109 = 11101215574263167
BaseRepresentation
bin10111001101110010000000…
…000111111011010011111101
3111101111212101202010122100021
4113031302000013323103331
5101340320111200401414
61001053021320532141
730335430343311241
oct2715620007732375
9441455352118307
10102102112122109
112a595298550720
12b5500a6921051
1344c8259960338
141b2daa9046421
15bc0d9c145c24
hex5cdc801fb4fd

102102112122109 has 16 divisors (see below), whose sum is σ = 112492179910656. Its totient is φ = 91896806296000.

The previous prime is 102102112122103. The next prime is 102102112122161. The reversal of 102102112122109 is 901221211201201.

It is a cyclic number.

It is not a de Polignac number, because 102102112122109 - 237 = 101964673168637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102112122103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21818244 + ... + 26081410.

It is an arithmetic number, because the mean of its divisors is an integer number (7030761244416).

Almost surely, 2102102112122109 is an apocalyptic number.

It is an amenable number.

102102112122109 is a deficient number, since it is larger than the sum of its proper divisors (10390067788547).

102102112122109 is a wasteful number, since it uses less digits than its factorization.

102102112122109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4284836.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 102102112122109 in words is "one hundred two trillion, one hundred two billion, one hundred twelve million, one hundred twenty-two thousand, one hundred nine".

Divisors: 1 11 101 1111 21557 237127 2177257 4263167 23949827 46894837 430579867 4736378537 91901091019 1010912001209 9282010192919 102102112122109