2143144421142 has 16 divisors (see below), whose sum is σ = 4288572449712. Its totient is φ = 714000872480.

The previous prime is 2143144421081. The next prime is 2143144421149. The reversal of 2143144421142 is 2411244413412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143144421149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95138109 + ... + 95160632.

It is an arithmetic number, because the mean of its divisors is an integer number (268035778107).

Almost surely, 2^{2143144421142} is an apocalyptic number.

2143144421142 is an abundant number, since it is smaller than the sum of its proper divisors (2145428028570).

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

2143144421142 is a wasteful number, since it uses less digits than its factorization.

2143144421142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190300623.

The product of its digits is 24576, while the sum is 33.

Adding to 2143144421142 its reverse (2411244413412), we get a palindrome (4554388834554).

The spelling of 2143144421142 in words is "two trillion, one hundred forty-three billion, one hundred forty-four million, four hundred twenty-one thousand, one hundred forty-two".