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32113102181 is a prime number
BaseRepresentation
bin11101111010000101…
…110000110101100101
310001220000110121121212
4131322011300311211
51011231423232211
622430315121205
72214535602416
oct357205606545
9101800417555
1032113102181
111268a010a76
126282743205
13304a0bc814
1417a8d4580d
15c7e3cd38b
hex77a170d65

32113102181 has 2 divisors, whose sum is σ = 32113102182. Its totient is φ = 32113102180.

The previous prime is 32113102169. The next prime is 32113102183. The reversal of 32113102181 is 18120131123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17196388225 + 14916713956 = 131135^2 + 122134^2 .

It is a cyclic number.

It is not a de Polignac number, because 32113102181 - 230 = 31039360357 is a prime.

It is a super-4 number, since 4×321131021814 (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

Together with 32113102183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32113102183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16056551090 + 16056551091.

It is an arithmetic number, because the mean of its divisors is an integer number (16056551091).

Almost surely, 232113102181 is an apocalyptic number.

It is an amenable number.

32113102181 is a deficient number, since it is larger than the sum of its proper divisors (1).

32113102181 is an equidigital number, since it uses as much as digits as its factorization.

32113102181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 32113102181 in words is "thirty-two billion, one hundred thirteen million, one hundred two thousand, one hundred eighty-one".