131181019103 has 2 divisors, whose sum is σ = 131181019104. Its totient is φ = 131181019102.

The previous prime is 131181019069. The next prime is 131181019159. The reversal of 131181019103 is 301910181131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131181019103 - 2¹⁰ = 131181018079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131181019183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65590509551 + 65590509552.

It is an arithmetic number, because the mean of its divisors is an integer number (65590509552).

Almost surely, 2^131181019103 is an apocalyptic number.

131181019103 is a deficient number, since it is larger than the sum of its proper divisors (1).

131181019103 is an equidigital number, since it uses as much as digits as its factorization.

131181019103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 131181019103 in words is "one hundred thirty-one billion, one hundred eighty-one million, nineteen thousand, one hundred three".