144120423443021 has 16 divisors (see below), whose sum is σ = 145084825643520. Its totient is φ = 143157262913280.

The previous prime is 144120423442997. The next prime is 144120423443033. The reversal of 144120423443021 is 120344324021441.

It is a cyclic number.

It is not a de Polignac number, because 144120423443021 - 2⁴⁶ = 73751679265357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144120423443081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1474917356 + ... + 1475015066.

It is an arithmetic number, because the mean of its divisors is an integer number (9067801602720).

Almost surely, 2^{144120423443021} is an apocalyptic number.

It is an amenable number.

144120423443021 is a deficient number, since it is larger than the sum of its proper divisors (964402200499).

144120423443021 is a wasteful number, since it uses less digits than its factorization.

144120423443021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103964.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 144120423443021 its reverse (120344324021441), we get a palindrome (264464747464462).

The spelling of 144120423443021 in words is "one hundred forty-four trillion, one hundred twenty billion, four hundred twenty-three million, four hundred forty-three thousand, twenty-one".