131243103 has 6 divisors (see below), whose sum is σ = 189573384. Its totient is φ = 87495396.

The previous prime is 131243093. The next prime is 131243113. The reversal of 131243103 is 301342131.

It is an interprime number because it is at equal distance from previous prime (131243093) and next prime (131243113).

It is not a de Polignac number, because 131243103 - 2⁵ = 131243071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131243113) 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 5 ways as a sum of consecutive naturals, for example, 7291275 + ... + 7291292.

It is an arithmetic number, because the mean of its divisors is an integer number (31595564).

Almost surely, 2^131243103 is an apocalyptic number.

131243103 is a deficient number, since it is larger than the sum of its proper divisors (58330281).

131243103 is a wasteful number, since it uses less digits than its factorization.

131243103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14582573 (or 14582570 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131243103 is about 11456.1382236773. The cubic root of 131243103 is about 508.1892765554.

Adding to 131243103 its reverse (301342131), we get a palindrome (432585234).

The spelling of 131243103 in words is "one hundred thirty-one million, two hundred forty-three thousand, one hundred three".