121044441321 has 24 divisors (see below), whose sum is σ = 175738399200. Its totient is φ = 80283603456.

The previous prime is 121044441317. The next prime is 121044441389. The reversal of 121044441321 is 123144440121.

121044441321 is a `hidden beast` number, since 1 + 210 + 4 + 4 + 441 + 3 + 2 + 1 = 666.

It is not a de Polignac number, because 121044441321 - 2² = 121044441317 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121044441391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1359066 + ... + 1445388.

It is an arithmetic number, because the mean of its divisors is an integer number (7322433300).

Almost surely, 2^121044441321 is an apocalyptic number.

It is an amenable number.

121044441321 is a deficient number, since it is larger than the sum of its proper divisors (54693957879).

121044441321 is a wasteful number, since it uses less digits than its factorization.

121044441321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87125 (or 87122 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 121044441321 its reverse (123144440121), we get a palindrome (244188881442).

The spelling of 121044441321 in words is "one hundred twenty-one billion, forty-four million, four hundred forty-one thousand, three hundred twenty-one".