43231122 has 72 divisors (see below), whose sum is σ = 107557632. Its totient is φ = 12516240.

The previous prime is 43231121. The next prime is 43231171. The reversal of 43231122 is 22113234.

43231122 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 (18).

It is a junction number, because it is equal to n+sod(n) for n = 43231095 and 43231104.

It is not an unprimeable number, because it can be changed into a prime (43231121) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 49663 + ... + 50525.

It is an arithmetic number, because the mean of its divisors is an integer number (1493856).

Almost surely, 2^43231122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43231122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53778816).

43231122 is an abundant number, since it is smaller than the sum of its proper divisors (64326510).

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

43231122 is a wasteful number, since it uses less digits than its factorization.

43231122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 902 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 43231122 is about 6575.0377945682. The cubic root of 43231122 is about 350.9663688039.

Adding to 43231122 its reverse (22113234), we get a palindrome (65344356).

It can be divided in two parts, 4323 and 1122, that added together give a palindrome (5445).

The spelling of 43231122 in words is "forty-three million, two hundred thirty-one thousand, one hundred twenty-two".