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131230103131 is a prime number
BaseRepresentation
bin111101000110111101…
…1000111011001011011
3110112201122120221220001
41322031323013121123
54122224401300011
6140141500313431
712324001320601
oct1721573073133
9415648527801
10131230103131
1150721a76896
1221524842877
13c4b49a8bca
1464cc9d3871
153630d487c1
hex1e8dec765b

131230103131 has 2 divisors, whose sum is σ = 131230103132. Its totient is φ = 131230103130.

The previous prime is 131230103107. The next prime is 131230103201. The reversal of 131230103131 is 131301032131.

It is a weak prime.

It is an emirp because it is prime and its reverse (131301032131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131230103131 - 231 = 129082619483 is a prime.

It is a super-2 number, since 2×1312301031312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131230103099 and 131230103108.

It is not a weakly prime, because it can be changed into another prime (131230173131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65615051565 + 65615051566.

It is an arithmetic number, because the mean of its divisors is an integer number (65615051566).

Almost surely, 2131230103131 is an apocalyptic number.

131230103131 is a deficient number, since it is larger than the sum of its proper divisors (1).

131230103131 is an equidigital number, since it uses as much as digits as its factorization.

131230103131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 131230103131 its reverse (131301032131), we get a palindrome (262531135262).

The spelling of 131230103131 in words is "one hundred thirty-one billion, two hundred thirty million, one hundred three thousand, one hundred thirty-one".