43401142142420 has 12 divisors (see below), whose sum is σ = 91142398499124. Its totient is φ = 17360456856960.

The previous prime is 43401142142401. The next prime is 43401142142429. The reversal of 43401142142420 is 2424124110434.

43401142142420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4384978393156 + 39016163749264 = 2094034^2 + 6246292^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43401142142429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085028553541 + ... + 1085028553580.

It is an arithmetic number, because the mean of its divisors is an integer number (7595199874927).

Almost surely, 2^{43401142142420} is an apocalyptic number.

It is an amenable number.

43401142142420 is an abundant number, since it is smaller than the sum of its proper divisors (47741256356704).

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

43401142142420 is a wasteful number, since it uses less digits than its factorization.

43401142142420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170057107130 (or 2170057107128 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 43401142142420 its reverse (2424124110434), we get a palindrome (45825266252854).

The spelling of 43401142142420 in words is "forty-three trillion, four hundred one billion, one hundred forty-two million, one hundred forty-two thousand, four hundred twenty".