43103145820 has 96 divisors (see below), whose sum is σ = 106902867456. Its totient is φ = 14291424000.

The previous prime is 43103145809. The next prime is 43103145851. The reversal of 43103145820 is 2854130134.

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, 572575 + ... + 643465.

It is an arithmetic number, because the mean of its divisors is an integer number (1113571536).

Almost surely, 2^43103145820 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 43103145820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53451433728).

43103145820 is an abundant number, since it is smaller than the sum of its proper divisors (63799721636).

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

43103145820 is a wasteful number, since it uses less digits than its factorization.

43103145820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71051 (or 71049 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 43103145820 its reverse (2854130134), we get a palindrome (45957275954).

It can be divided in two parts, 4310314 and 5820, that added together give a palindrome (4316134).

The spelling of 43103145820 in words is "forty-three billion, one hundred three million, one hundred forty-five thousand, eight hundred twenty".