43421230142 has 16 divisors (see below), whose sum is σ = 67382809200. Its totient is φ = 20960405760.

The previous prime is 43421230141. The next prime is 43421230201. The reversal of 43421230142 is 24103212434.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43421230141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1264334 + ... + 1298222.

It is an arithmetic number, because the mean of its divisors is an integer number (4211425575).

Almost surely, 2^43421230142 is an apocalyptic number.

43421230142 is a deficient number, since it is larger than the sum of its proper divisors (23961579058).

43421230142 is a wasteful number, since it uses less digits than its factorization.

43421230142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56011.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 43421230142 its reverse (24103212434), we get a palindrome (67524442576).

The spelling of 43421230142 in words is "forty-three billion, four hundred twenty-one million, two hundred thirty thousand, one hundred forty-two".