Search a number
-
+
131230303801 is a prime number
BaseRepresentation
bin111101000110111101…
…1111000011000111001
3110112201122222011011021
41322031323320120321
54122224424210201
6140141504502441
712324003114622
oct1721573703071
9415648864137
10131230303801
11507220a3633
122152491aa21
13c4b4a4934c
1464cca46a49
153630d87ea1
hex1e8def8639

131230303801 has 2 divisors, whose sum is σ = 131230303802. Its totient is φ = 131230303800.

The previous prime is 131230303793. The next prime is 131230303823. The reversal of 131230303801 is 108303032131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77519923776 + 53710380025 = 278424^2 + 231755^2 .

It is a cyclic number.

It is not a de Polignac number, because 131230303801 - 23 = 131230303793 is a prime.

It is not a weakly prime, because it can be changed into another prime (131230303861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65615151900 + 65615151901.

It is an arithmetic number, because the mean of its divisors is an integer number (65615151901).

Almost surely, 2131230303801 is an apocalyptic number.

It is an amenable number.

131230303801 is a deficient number, since it is larger than the sum of its proper divisors (1).

131230303801 is an equidigital number, since it uses as much as digits as its factorization.

131230303801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 131230303801 its reverse (108303032131), we get a palindrome (239533335932).

The spelling of 131230303801 in words is "one hundred thirty-one billion, two hundred thirty million, three hundred three thousand, eight hundred one".