144120331220421 has 8 divisors (see below), whose sum is σ = 192163823353504. Its totient is φ = 96078529950480.

The previous prime is 144120331220417. The next prime is 144120331220423. The reversal of 144120331220421 is 124022133021441.

It is a happy number.

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

It is not a de Polignac number, because 144120331220421 - 2² = 144120331220417 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 (144120331220423) 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, 422516890 + ... + 422857851.

It is an arithmetic number, because the mean of its divisors is an integer number (24020477919188).

Almost surely, 2^{144120331220421} is an apocalyptic number.

It is an amenable number.

144120331220421 is a deficient number, since it is larger than the sum of its proper divisors (48043492133083).

144120331220421 is an equidigital number, since it uses as much as digits as its factorization.

144120331220421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845431571.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 144120331220421 its reverse (124022133021441), we get a palindrome (268142464241862).

The spelling of 144120331220421 in words is "one hundred forty-four trillion, one hundred twenty billion, three hundred thirty-one million, two hundred twenty thousand, four hundred twenty-one".