Search a number
-
+
131230212201 = 321110733123503
BaseRepresentation
bin111101000110111101…
…1100010000001101001
3110112201122210111111200
41322031323202001221
54122224413242301
6140141502514413
712324002253564
oct1721573420151
9415648714450
10131230212201
1150722040830
1221524895a09
13c4b4a1674a
1464cca214db
153630d6ac86
hex1e8dee2069

131230212201 has 24 divisors (see below), whose sum is σ = 206807942016. Its totient is φ = 79525407840.

The previous prime is 131230212193. The next prime is 131230212221. The reversal of 131230212201 is 102212032131.

It is not a de Polignac number, because 131230212201 - 23 = 131230212193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131230212221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1000816 + ... + 1124318.

It is an arithmetic number, because the mean of its divisors is an integer number (8616997584).

Almost surely, 2131230212201 is an apocalyptic number.

131230212201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131230212201 is a deficient number, since it is larger than the sum of its proper divisors (75577729815).

131230212201 is a wasteful number, since it uses less digits than its factorization.

131230212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134253 (or 134250 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 131230212201 its reverse (102212032131), we get a palindrome (233442244332).

The spelling of 131230212201 in words is "one hundred thirty-one billion, two hundred thirty million, two hundred twelve thousand, two hundred one".

Divisors: 1 3 9 11 33 99 10733 32199 96597 118063 123503 354189 370509 1062567 1111527 1358533 4075599 12226797 1325557699 3976673097 11930019291 14581134689 43743404067 131230212201