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10061105081 is a prime number
BaseRepresentation
bin10010101111011000…
…00100011110111001
3221222011202002112112
421113230010132321
5131101120330311
64342204222105
7504215660606
oct112754043671
927864662475
1010061105081
1142a3260185
121b4953a935
13c44563421
146b630b6ad
153dd42d28b
hex257b047b9

10061105081 has 2 divisors, whose sum is σ = 10061105082. Its totient is φ = 10061105080.

The previous prime is 10061105029. The next prime is 10061105107. The reversal of 10061105081 is 18050116001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8007565225 + 2053539856 = 89485^2 + 45316^2 .

It is a cyclic number.

It is not a de Polignac number, because 10061105081 - 222 = 10056910777 is a prime.

It is a super-2 number, since 2×100611050812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10061105011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030552540 + 5030552541.

It is an arithmetic number, because the mean of its divisors is an integer number (5030552541).

Almost surely, 210061105081 is an apocalyptic number.

It is an amenable number.

10061105081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10061105081 is an equidigital number, since it uses as much as digits as its factorization.

10061105081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 23.

The spelling of 10061105081 in words is "ten billion, sixty-one million, one hundred five thousand, eighty-one".