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102110112111 = 37217283144383
BaseRepresentation
bin101111100011000111…
…1001010100101101111
3100202120020012010220010
41133012033022211233
53133110142041421
6114524142024303
710243245426600
oct1370617124557
9322506163803
10102110112111
113a339550607
1217958578093
139823a2b1a7
144d293bdda7
1529c95ed076
hex17c63ca96f

102110112111 has 48 divisors (see below), whose sum is σ = 168284749824. Its totient is φ = 54721933056.

The previous prime is 102110112089. The next prime is 102110112127. The reversal of 102110112111 is 111211011201.

It is not a de Polignac number, because 102110112111 - 215 = 102110079343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102110112131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 635026 + ... + 779408.

It is an arithmetic number, because the mean of its divisors is an integer number (3505932288).

Almost surely, 2102110112111 is an apocalyptic number.

102110112111 is a deficient number, since it is larger than the sum of its proper divisors (66174637713).

102110112111 is a wasteful number, since it uses less digits than its factorization.

102110112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144700 (or 144693 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 102110112111 its reverse (111211011201), we get a palindrome (213321123312).

The spelling of 102110112111 in words is "one hundred two billion, one hundred ten million, one hundred twelve thousand, one hundred eleven".

Divisors: 1 3 7 17 21 49 51 119 147 283 357 833 849 1981 2499 4811 5943 13867 14433 33677 41601 101031 144383 235739 433149 707217 1010681 2454511 3032043 7074767 7363533 17181577 21224301 40860389 51544731 120271039 122581167 286022723 360813117 694626613 858068169 2002159061 2083879839 4862386291 6006477183 14587158873 34036704037 102110112111