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201012201191 is a prime number
BaseRepresentation
bin1011101100110101000…
…0101100011011100111
3201012211212220211111102
42323031100230123213
511243133110414231
6232202125030315
720344161342614
oct2731520543347
9635755824442
10201012201191
1178281168a0a
1232b5a6b539b
1315c55c3baa9
149a2c6c750b
155367265acb
hex2ecd42c6e7

201012201191 has 2 divisors, whose sum is σ = 201012201192. Its totient is φ = 201012201190.

The previous prime is 201012201151. The next prime is 201012201217. The reversal of 201012201191 is 191102210102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201012201191 - 222 = 201008006887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201012201151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100506100595 + 100506100596.

It is an arithmetic number, because the mean of its divisors is an integer number (100506100596).

Almost surely, 2201012201191 is an apocalyptic number.

201012201191 is a deficient number, since it is larger than the sum of its proper divisors (1).

201012201191 is an equidigital number, since it uses as much as digits as its factorization.

201012201191 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 20.

Adding to 201012201191 its reverse (191102210102), we get a palindrome (392114411293).

The spelling of 201012201191 in words is "two hundred one billion, twelve million, two hundred one thousand, one hundred ninety-one".