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131200323061 is a prime number
BaseRepresentation
bin111101000110000100…
…1100000110111110101
3110112122120112222022111
41322030021200313311
54122144240314221
6140134514131021
712323160226333
oct1721411406765
9415576488274
10131200323061
1150707186665
1221516880a71
13c4ab780072
1464c8a80b53
15362d414be1
hex1e8c260df5

131200323061 has 2 divisors, whose sum is σ = 131200323062. Its totient is φ = 131200323060.

The previous prime is 131200323047. The next prime is 131200323073. The reversal of 131200323061 is 160323002131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129650404900 + 1549918161 = 360070^2 + 39369^2 .

It is a cyclic number.

It is not a de Polignac number, because 131200323061 - 217 = 131200191989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131200323031) 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, 65600161530 + 65600161531.

It is an arithmetic number, because the mean of its divisors is an integer number (65600161531).

Almost surely, 2131200323061 is an apocalyptic number.

It is an amenable number.

131200323061 is a deficient number, since it is larger than the sum of its proper divisors (1).

131200323061 is an equidigital number, since it uses as much as digits as its factorization.

131200323061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131200323061 its reverse (160323002131), we get a palindrome (291523325192).

The spelling of 131200323061 in words is "one hundred thirty-one billion, two hundred million, three hundred twenty-three thousand, sixty-one".