144322023221242 has 4 divisors (see below), whose sum is σ = 216483034831866. Its totient is φ = 72161011610620.

The previous prime is 144322023221227. The next prime is 144322023221263. The reversal of 144322023221242 is 242122320223441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 116618422598001 + 27703600623241 = 10799001^2 + 5263421^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144322023221198 and 144322023221207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36080505805309 + ... + 36080505805312.

Almost surely, 2^{144322023221242} is an apocalyptic number.

144322023221242 is a deficient number, since it is larger than the sum of its proper divisors (72161011610624).

144322023221242 is an equidigital number, since it uses as much as digits as its factorization.

144322023221242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72161011610623.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 144322023221242 its reverse (242122320223441), we get a palindrome (386444343444683).

The spelling of 144322023221242 in words is "one hundred forty-four trillion, three hundred twenty-two billion, twenty-three million, two hundred twenty-one thousand, two hundred forty-two".