43131043421304 has 64 divisors (see below), whose sum is σ = 112516723261440. Its totient is φ = 13751809822080.

The previous prime is 43131043421299. The next prime is 43131043421317. The reversal of 43131043421304 is 40312434013134.

43131043421304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43131043421304² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83857929 + ... + 84370695.

It is an arithmetic number, because the mean of its divisors is an integer number (1758073800960).

Almost surely, 2^{43131043421304} is an apocalyptic number.

It is an amenable number.

43131043421304 is an abundant number, since it is smaller than the sum of its proper divisors (69385679840136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43131043421304 is a wasteful number, since it uses less digits than its factorization.

43131043421304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665180 (or 665176 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 43131043421304 its reverse (40312434013134), we get a palindrome (83443477434438).

The spelling of 43131043421304 in words is "forty-three trillion, one hundred thirty-one billion, forty-three million, four hundred twenty-one thousand, three hundred four".