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1020116191 is a prime number
BaseRepresentation
bin111100110011011…
…011110011011111
32122002112021100011
4330303123303133
54042122204231
6245120344051
734164562453
oct7463336337
92562467304
101020116191
11483913436
12245775027
13133461463
14996a6663
155e8569b1
hex3ccdbcdf

1020116191 has 2 divisors, whose sum is σ = 1020116192. Its totient is φ = 1020116190.

The previous prime is 1020116147. The next prime is 1020116243. The reversal of 1020116191 is 1916110201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020116191 - 27 = 1020116063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020116791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510058095 + 510058096.

It is an arithmetic number, because the mean of its divisors is an integer number (510058096).

Almost surely, 21020116191 is an apocalyptic number.

1020116191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020116191 is an equidigital number, since it uses as much as digits as its factorization.

1020116191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 22.

The square root of 1020116191 is about 31939.2578342077. The cubic root of 1020116191 is about 1006.6609304942.

Adding to 1020116191 its reverse (1916110201), we get a palindrome (2936226392).

The spelling of 1020116191 in words is "one billion, twenty million, one hundred sixteen thousand, one hundred ninety-one".