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102111114231 = 32710116047637
BaseRepresentation
bin101111100011001001…
…0111111001111110111
3100202120022002001112200
41133012102333033313
53133110421123411
6114524215315543
710243260102330
oct1370622771767
9322508061480
10102111114231
113a33a075505
121795897bbb3
139823cbc369
144d295a1287
1529c9749e56
hex17c64bf3f7

102111114231 has 24 divisors (see below), whose sum is σ = 170233343904. Its totient is φ = 57771489600.

The previous prime is 102111114199. The next prime is 102111114233. The reversal of 102111114231 is 132411111201.

It is not a de Polignac number, because 102111114231 - 25 = 102111114199 is a prime.

It is a super-2 number, since 2×1021111142312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111114233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8017456 + ... + 8030181.

It is an arithmetic number, because the mean of its divisors is an integer number (7093055996).

Almost surely, 2102111114231 is an apocalyptic number.

102111114231 is a deficient number, since it is larger than the sum of its proper divisors (68122229673).

102111114231 is a wasteful number, since it uses less digits than its factorization.

102111114231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16047751 (or 16047748 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 102111114231 its reverse (132411111201), we get a palindrome (234522225432).

The spelling of 102111114231 in words is "one hundred two billion, one hundred eleven million, one hundred fourteen thousand, two hundred thirty-one".

Divisors: 1 3 7 9 21 63 101 303 707 909 2121 6363 16047637 48142911 112333459 144428733 337000377 1011001131 1620811337 4862434011 11345679359 14587302033 34037038077 102111114231