144020355121 has 8 divisors (see below), whose sum is σ = 147285220680. Its totient is φ = 140790408192.

The previous prime is 144020355077. The next prime is 144020355173. The reversal of 144020355121 is 121553020441.

It can be written as a sum of positive squares in 4 ways, for example, as 3871950625 + 140148404496 = 62225^2 + 374364^2 .

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 144020355121 - 2²¹ = 144018257969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144020355121.

It is not an unprimeable number, because it can be changed into a prime (144020355191) 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, 8721316 + ... + 8737813.

It is an arithmetic number, because the mean of its divisors is an integer number (18410652585).

Almost surely, 2^144020355121 is an apocalyptic number.

It is an amenable number.

144020355121 is a deficient number, since it is larger than the sum of its proper divisors (3264865559).

144020355121 is a wasteful number, since it uses less digits than its factorization.

144020355121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17459315.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 144020355121 its reverse (121553020441), we get a palindrome (265573375562).

The spelling of 144020355121 in words is "one hundred forty-four billion, twenty million, three hundred fifty-five thousand, one hundred twenty-one".