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102112108057 is a prime number
BaseRepresentation
bin101111100011001011…
…0110001111000011001
3100202120100221112211001
41133012112301320121
53133111144424212
6114524252505001
710243301411641
oct1370626617031
9322510845731
10102112108057
113a33a694153
121795917b161
13982427981b
144d2977d521
1529c9894657
hex17c65b1e19

102112108057 has 2 divisors, whose sum is σ = 102112108058. Its totient is φ = 102112108056.

The previous prime is 102112108031. The next prime is 102112108099. The reversal of 102112108057 is 750801211201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100529580096 + 1582527961 = 317064^2 + 39781^2 .

It is a cyclic number.

It is not a de Polignac number, because 102112108057 - 235 = 67752369689 is a prime.

It is a super-2 number, since 2×1021121080572 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102172108057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51056054028 + 51056054029.

It is an arithmetic number, because the mean of its divisors is an integer number (51056054029).

Almost surely, 2102112108057 is an apocalyptic number.

It is an amenable number.

102112108057 is a deficient number, since it is larger than the sum of its proper divisors (1).

102112108057 is an equidigital number, since it uses as much as digits as its factorization.

102112108057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 28.

Adding to 102112108057 its reverse (750801211201), we get a palindrome (852913319258).

The spelling of 102112108057 in words is "one hundred two billion, one hundred twelve million, one hundred eight thousand, fifty-seven".