Search a number
-
+
201020401471 is a prime number
BaseRepresentation
bin1011101100110110111…
…1111110011100111111
3201012212110100110011111
42323031233332130333
511243142210321341
6232203020502451
720344321135261
oct2731557763477
9635773313144
10201020401471
11782858599aa
1232b613aaa27
1315c57850426
149a2d81db31
155367d35681
hex2ecdbfe73f

201020401471 has 2 divisors, whose sum is σ = 201020401472. Its totient is φ = 201020401470.

The previous prime is 201020401469. The next prime is 201020401499. The reversal of 201020401471 is 174104020102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201020401471 - 21 = 201020401469 is a prime.

It is a super-3 number, since 3×2010204014713 (a number of 35 digits) contains 333 as substring.

Together with 201020401469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201020401171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510200735 + 100510200736.

It is an arithmetic number, because the mean of its divisors is an integer number (100510200736).

Almost surely, 2201020401471 is an apocalyptic number.

201020401471 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020401471 is an equidigital number, since it uses as much as digits as its factorization.

201020401471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 201020401471 its reverse (174104020102), we get a palindrome (375124421573).

The spelling of 201020401471 in words is "two hundred one billion, twenty million, four hundred one thousand, four hundred seventy-one".