131130229187 has 2 divisors, whose sum is σ = 131130229188. Its totient is φ = 131130229186.

The previous prime is 131130229169. The next prime is 131130229207. The reversal of 131130229187 is 781922031131.

It is a weak prime.

It is an emirp because it is prime and its reverse (781922031131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131130229187 - 2⁶ = 131130229123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131130229187.

It is not a weakly prime, because it can be changed into another prime (131130226187) 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 as a sum of consecutive naturals, namely, 65565114593 + 65565114594.

It is an arithmetic number, because the mean of its divisors is an integer number (65565114594).

Almost surely, 2^131130229187 is an apocalyptic number.

131130229187 is a deficient number, since it is larger than the sum of its proper divisors (1).

131130229187 is an equidigital number, since it uses as much as digits as its factorization.

131130229187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 131130229187 in words is "one hundred thirty-one billion, one hundred thirty million, two hundred twenty-nine thousand, one hundred eighty-seven".