43131342232503 has 24 divisors (see below), whose sum is σ = 71201363226656. Its totient is φ = 24646336819200.

The previous prime is 43131342232453. The next prime is 43131342232549. The reversal of 43131342232503 is 30523224313134.

43131342232503 is a `hidden beast` number, since 4 + 3 + 1 + 31 + 342 + 232 + 50 + 3 = 666.

It is not a de Polignac number, because 43131342232503 - 2¹⁸ = 43131341970359 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 (43131342232603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9332283 + ... + 13166403.

Almost surely, 2^{43131342232503} is an apocalyptic number.

43131342232503 is a deficient number, since it is larger than the sum of its proper divisors (28070020994153).

43131342232503 is a wasteful number, since it uses less digits than its factorization.

43131342232503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012695 (or 4012692 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

Adding to 43131342232503 its reverse (30523224313134), we get a palindrome (73654566545637).

The spelling of 43131342232503 in words is "forty-three trillion, one hundred thirty-one billion, three hundred forty-two million, two hundred thirty-two thousand, five hundred three".