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102020103112 = 23172832650699
BaseRepresentation
bin101111100000011011…
…1110011101111001000
3100202022221211012202111
41133000313303233020
53132414121244422
6114511204512104
710241103365644
oct1370067635710
9322287735674
10102020103112
113a2a2763504
12179323ab634
13980b1a5125
144d1b46dc24
1529c176da77
hex17c0df3bc8

102020103112 has 32 divisors (see below), whose sum is σ = 203255676000. Its totient is φ = 47839797504.

The previous prime is 102020103067. The next prime is 102020103113. The reversal of 102020103112 is 211301020201.

It is a super-2 number, since 2×1020201031122 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102020103092 and 102020103101.

It is not an unprimeable number, because it can be changed into a prime (102020103113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1286862 + ... + 1363837.

It is an arithmetic number, because the mean of its divisors is an integer number (6351739875).

Almost surely, 2102020103112 is an apocalyptic number.

It is an amenable number.

102020103112 is a deficient number, since it is larger than the sum of its proper divisors (101235572888).

102020103112 is a wasteful number, since it uses less digits than its factorization.

102020103112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651005 (or 2651001 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 102020103112 its reverse (211301020201), we get a palindrome (313321123313).

The spelling of 102020103112 in words is "one hundred two billion, twenty million, one hundred three thousand, one hundred twelve".

Divisors: 1 2 4 8 17 34 68 136 283 566 1132 2264 4811 9622 19244 38488 2650699 5301398 10602796 21205592 45061883 90123766 180247532 360495064 750147817 1500295634 3000591268 6001182536 12752512889 25505025778 51010051556 102020103112