43121101304020 has 24 divisors (see below), whose sum is σ = 95320329199200. Its totient is φ = 16340627862432.

The previous prime is 43121101304009. The next prime is 43121101304041. The reversal of 43121101304020 is 2040310112134.

It is a junction number, because it is equal to n+sod(n) for n = 43121101303982 and 43121101304000.

It is a congruent number.

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, 56738290810 + ... + 56738291569.

It is an arithmetic number, because the mean of its divisors is an integer number (3971680383300).

Almost surely, 2^{43121101304020} is an apocalyptic number.

It is an amenable number.

43121101304020 is an abundant number, since it is smaller than the sum of its proper divisors (52199227895180).

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

43121101304020 is a wasteful number, since it uses less digits than its factorization.

43121101304020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113476582407 (or 113476582405 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 43121101304020 its reverse (2040310112134), we get a palindrome (45161411416154).

The spelling of 43121101304020 in words is "forty-three trillion, one hundred twenty-one billion, one hundred one million, three hundred four thousand, twenty".