144043431021 has 24 divisors (see below), whose sum is σ = 245456500224. Its totient is φ = 79655352480.

The previous prime is 144043431001. The next prime is 144043431043. The reversal of 144043431021 is 120134340441.

It is not a de Polignac number, because 144043431021 - 2⁶ = 144043430957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144043431001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36875526 + ... + 36879431.

It is an arithmetic number, because the mean of its divisors is an integer number (10227354176).

Almost surely, 2^144043431021 is an apocalyptic number.

It is an amenable number.

144043431021 is a deficient number, since it is larger than the sum of its proper divisors (101413069203).

144043431021 is a wasteful number, since it uses less digits than its factorization.

144043431021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73755001 (or 73754998 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 144043431021 its reverse (120134340441), we get a palindrome (264177771462).

The spelling of 144043431021 in words is "one hundred forty-four billion, forty-three million, four hundred thirty-one thousand, twenty-one".