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102303231111 = 3279143886401
BaseRepresentation
bin101111101000110111…
…1110110110010000111
3100210001200120121100200
41133101233312302013
53134004111343421
6114555241141543
710251112055004
oct1372157666207
9323050517320
10102303231111
113a428563794
12179b118a8b3
139854a464a3
144d46cd08ab
1529db548726
hex17d1bf6c87

102303231111 has 12 divisors (see below), whose sum is σ = 149641858080. Its totient is φ = 67338835200.

The previous prime is 102303231083. The next prime is 102303231127. The reversal of 102303231111 is 111132303201.

102303231111 is a `hidden beast` number, since 1 + 0 + 230 + 323 + 1 + 111 = 666.

It is not a de Polignac number, because 102303231111 - 215 = 102303198343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102303231181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71942490 + ... + 71943911.

It is an arithmetic number, because the mean of its divisors is an integer number (12470154840).

Almost surely, 2102303231111 is an apocalyptic number.

102303231111 is a deficient number, since it is larger than the sum of its proper divisors (47338626969).

102303231111 is a wasteful number, since it uses less digits than its factorization.

102303231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143886486 (or 143886483 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 102303231111 its reverse (111132303201), we get a palindrome (213435534312).

The spelling of 102303231111 in words is "one hundred two billion, three hundred three million, two hundred thirty-one thousand, one hundred eleven".

Divisors: 1 3 9 79 237 711 143886401 431659203 1294977609 11367025679 34101077037 102303231111