144042203453921 has 2 divisors, whose sum is σ = 144042203453922. Its totient is φ = 144042203453920.

The previous prime is 144042203453917. The next prime is 144042203454001. The reversal of 144042203453921 is 129354302240441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111528384490000 + 32513818963921 = 10560700^2 + 5702089^2 .

It is a cyclic number.

It is not a de Polignac number, because 144042203453921 - 2² = 144042203453917 is a prime.

It is not a weakly prime, because it can be changed into another prime (144042203453321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72021101726960 + 72021101726961.

It is an arithmetic number, because the mean of its divisors is an integer number (72021101726961).

Almost surely, 2^{144042203453921} is an apocalyptic number.

It is an amenable number.

144042203453921 is a deficient number, since it is larger than the sum of its proper divisors (1).

144042203453921 is an equidigital number, since it uses as much as digits as its factorization.

144042203453921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 144042203453921 in words is "one hundred forty-four trillion, forty-two billion, two hundred three million, four hundred fifty-three thousand, nine hundred twenty-one".