43500432124213 has 4 divisors (see below), whose sum is σ = 43500454581420. Its totient is φ = 43500409667008.

The previous prime is 43500432124199. The next prime is 43500432124249. The reversal of 43500432124213 is 31242123400534.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24507074013444 + 18993358110769 = 4950462^2 + 4358137^2 .

It is a cyclic number.

It is not a de Polignac number, because 43500432124213 - 2⁵ = 43500432124181 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 (43500439124213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8016820 + ... + 12299197.

It is an arithmetic number, because the mean of its divisors is an integer number (10875113645355).

Almost surely, 2^{43500432124213} is an apocalyptic number.

It is an amenable number.

43500432124213 is a deficient number, since it is larger than the sum of its proper divisors (22457207).

43500432124213 is a wasteful number, since it uses less digits than its factorization.

43500432124213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22457206.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 43500432124213 its reverse (31242123400534), we get a palindrome (74742555524747).

The spelling of 43500432124213 in words is "forty-three trillion, five hundred billion, four hundred thirty-two million, one hundred twenty-four thousand, two hundred thirteen".