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121000032061 is a prime number
BaseRepresentation
bin111000010110000101…
…0011111011100111101
3102120022200220111120221
41300230022133130331
53440302002011221
6131330414341341
711512331205526
oct1605412373475
9376280814527
10121000032061
11473523aaaa7
121b54a7ba851
13b54443600c
145bdc0a184d
153232b91541
hex1c2c29f73d

121000032061 has 2 divisors, whose sum is σ = 121000032062. Its totient is φ = 121000032060.

The previous prime is 121000032029. The next prime is 121000032089. The reversal of 121000032061 is 160230000121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105498288025 + 15501744036 = 324805^2 + 124506^2 .

It is a cyclic number.

It is not a de Polignac number, because 121000032061 - 25 = 121000032029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121000032001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500016030 + 60500016031.

It is an arithmetic number, because the mean of its divisors is an integer number (60500016031).

Almost surely, 2121000032061 is an apocalyptic number.

It is an amenable number.

121000032061 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000032061 is an equidigital number, since it uses as much as digits as its factorization.

121000032061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121000032061 its reverse (160230000121), we get a palindrome (281230032182).

The spelling of 121000032061 in words is "one hundred twenty-one billion, thirty-two thousand, sixty-one".