43123010420 has 96 divisors (see below), whose sum is σ = 105859353600. Its totient is φ = 14448268800.

The previous prime is 43123010387. The next prime is 43123010449. The reversal of 43123010420 is 2401032134.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 43123010392 and 43123010401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4607906 + ... + 4617254.

It is an arithmetic number, because the mean of its divisors is an integer number (1102701600).

Almost surely, 2^43123010420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43123010420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52929676800).

43123010420 is an abundant number, since it is smaller than the sum of its proper divisors (62736343180).

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

43123010420 is a wasteful number, since it uses less digits than its factorization.

43123010420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10113 (or 10111 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 43123010420 its reverse (2401032134), we get a palindrome (45524042554).

The spelling of 43123010420 in words is "forty-three billion, one hundred twenty-three million, ten thousand, four hundred twenty".