121443144144404 has 6 divisors (see below), whose sum is σ = 212525502252714. Its totient is φ = 60721572072200.

The previous prime is 121443144144391. The next prime is 121443144144437. The reversal of 121443144144404 is 404441441344121.

It can be written as a sum of positive squares in only one way, i.e., 79594018716304 + 41849125428100 = 8921548^2 + 6469090^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15180393018047 + ... + 15180393018054.

It is an arithmetic number, because the mean of its divisors is an integer number (35420917042119).

Almost surely, 2^{121443144144404} is an apocalyptic number.

It is an amenable number.

121443144144404 is a deficient number, since it is larger than the sum of its proper divisors (91082358108310).

121443144144404 is a wasteful number, since it uses less digits than its factorization.

121443144144404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30360786036105 (or 30360786036103 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 41.

Adding to 121443144144404 its reverse (404441441344121), we get a palindrome (525884585488525).

The spelling of 121443144144404 in words is "one hundred twenty-one trillion, four hundred forty-three billion, one hundred forty-four million, one hundred forty-four thousand, four hundred four".