144531023231021 has 8 divisors (see below), whose sum is σ = 165551175274944. Its totient is φ = 123604086939840.

The previous prime is 144531023230969. The next prime is 144531023231027. The reversal of 144531023231021 is 120132320135441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144531023231021 - 2¹⁴ = 144531023214637 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 (144531023231027) 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, 23303934860 + ... + 23303941061.

It is an arithmetic number, because the mean of its divisors is an integer number (20693896909368).

Almost surely, 2^{144531023231021} is an apocalyptic number.

It is an amenable number.

144531023231021 is a deficient number, since it is larger than the sum of its proper divisors (21020152043923).

144531023231021 is an equidigital number, since it uses as much as digits as its factorization.

144531023231021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46607876371.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 144531023231021 its reverse (120132320135441), we get a palindrome (264663343366462).

The spelling of 144531023231021 in words is "one hundred forty-four trillion, five hundred thirty-one billion, twenty-three million, two hundred thirty-one thousand, twenty-one".