43121120 has 48 divisors (see below), whose sum is σ = 116430048. Its totient is φ = 14784000.

The previous prime is 43121101. The next prime is 43121189. The reversal of 43121120 is 2112134.

43121120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 43121095 and 43121104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18131 + ... + 20370.

It is an arithmetic number, because the mean of its divisors is an integer number (2425626).

Almost surely, 2^43121120 is an apocalyptic number.

43121120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43121120 is an abundant number, since it is smaller than the sum of its proper divisors (73308928).

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

43121120 is a wasteful number, since it uses less digits than its factorization.

43121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38523 (or 38515 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 43121120 is about 6566.6673434856. The cubic root of 43121120 is about 350.6684368791.

Adding to 43121120 its reverse (2112134), we get a palindrome (45233254).

The spelling of 43121120 in words is "forty-three million, one hundred twenty-one thousand, one hundred twenty".