131103543 has 16 divisors (see below), whose sum is σ = 179987456. Its totient is φ = 84823200.

The previous prime is 131103509. The next prime is 131103571. The reversal of 131103543 is 345301131.

It is not a de Polignac number, because 131103543 - 2¹⁰ = 131102519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131103593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50118 + ... + 52668.

It is an arithmetic number, because the mean of its divisors is an integer number (11249216).

Almost surely, 2^131103543 is an apocalyptic number.

131103543 is a deficient number, since it is larger than the sum of its proper divisors (48883913).

131103543 is a wasteful number, since it uses less digits than its factorization.

131103543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 131103543 is about 11450.0455457609. The cubic root of 131103543 is about 508.0090815641.

Adding to 131103543 its reverse (345301131), we get a palindrome (476404674).

It can be divided in two parts, 13110 and 3543, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 131103543 in words is "one hundred thirty-one million, one hundred three thousand, five hundred forty-three".