121401344203404 has 12 divisors (see below), whose sum is σ = 283269803141304. Its totient is φ = 40467114734464.

The previous prime is 121401344203387. The next prime is 121401344203417. The reversal of 121401344203404 is 404302443104121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×121401344203404³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5058389341797 + ... + 5058389341820.

It is an arithmetic number, because the mean of its divisors is an integer number (23605816928442).

Almost surely, 2^{121401344203404} is an apocalyptic number.

It is an amenable number.

121401344203404 is an abundant number, since it is smaller than the sum of its proper divisors (161868458937900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121401344203404 is a wasteful number, since it uses less digits than its factorization.

121401344203404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10116778683624 (or 10116778683622 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 121401344203404 its reverse (404302443104121), we get a palindrome (525703787307525).

The spelling of 121401344203404 in words is "one hundred twenty-one trillion, four hundred one billion, three hundred forty-four million, two hundred three thousand, four hundred four".