43131342232505 has 8 divisors (see below), whose sum is σ = 51759068483400. Its totient is φ = 34504101916416.

The previous prime is 43131342232453. The next prime is 43131342232549. The reversal of 43131342232505 is 50523224313134.

It can be written as a sum of positive squares in 4 ways, for example, as 5552333482921 + 37579008749584 = 2356339^2 + 6130172^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43131342232505 - 2¹² = 43131342228409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121288400 + ... + 121643489.

It is an arithmetic number, because the mean of its divisors is an integer number (6469883560425).

Almost surely, 2^{43131342232505} is an apocalyptic number.

It is an amenable number.

43131342232505 is a deficient number, since it is larger than the sum of its proper divisors (8627726250895).

43131342232505 is a wasteful number, since it uses less digits than its factorization.

43131342232505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242967403.

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 43131342232505 its reverse (50523224313134), we get a palindrome (93654566545639).

The spelling of 43131342232505 in words is "forty-three trillion, one hundred thirty-one billion, three hundred forty-two million, two hundred thirty-two thousand, five hundred five".