144321322020442 has 12 divisors (see below), whose sum is σ = 251825980260330. Its totient is φ = 61851995151576.

The previous prime is 144321322020437. The next prime is 144321322020461. The reversal of 144321322020442 is 244020223123441.

It can be written as a sum of positive squares in only one way, i.e., 87395368405401 + 56925953615041 = 9348549^2 + 7544929^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144321322020398 and 144321322020407.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 736333275517 + ... + 736333275712.

Almost surely, 2^{144321322020442} is an apocalyptic number.

144321322020442 is a deficient number, since it is larger than the sum of its proper divisors (107504658239888).

144321322020442 is a wasteful number, since it uses less digits than its factorization.

144321322020442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472666551245 (or 1472666551238 counting only the distinct ones).

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

Adding to 144321322020442 its reverse (244020223123441), we get a palindrome (388341545143883).

The spelling of 144321322020442 in words is "one hundred forty-four trillion, three hundred twenty-one billion, three hundred twenty-two million, twenty thousand, four hundred forty-two".