121204242120413 has 8 divisors (see below), whose sum is σ = 122380856454240. Its totient is φ = 120028440090640.

The previous prime is 121204242120341. The next prime is 121204242120421. The reversal of 121204242120413 is 314021242402121.

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 121204242120413 - 2¹⁸ = 121204241858269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121203242120413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202776143 + ... + 203372988.

It is an arithmetic number, because the mean of its divisors is an integer number (15297607056780).

Almost surely, 2^{121204242120413} is an apocalyptic number.

It is an amenable number.

121204242120413 is a deficient number, since it is larger than the sum of its proper divisors (1176614333827).

121204242120413 is a wasteful number, since it uses less digits than its factorization.

121204242120413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406152027.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 121204242120413 its reverse (314021242402121), we get a palindrome (435225484522534).

The spelling of 121204242120413 in words is "one hundred twenty-one trillion, two hundred four billion, two hundred forty-two million, one hundred twenty thousand, four hundred thirteen".