121221020110313 has 8 divisors (see below), whose sum is σ = 129576657764736. Its totient is φ = 113122478999200.

The previous prime is 121221020110259. The next prime is 121221020110331. The reversal of 121221020110313 is 313011020122121.

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 121221020110313 - 2⁶ = 121221020110249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121221020110373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64274134853 + ... + 64274136738.

It is an arithmetic number, because the mean of its divisors is an integer number (16197082220592).

Almost surely, 2^{121221020110313} is an apocalyptic number.

It is an amenable number.

121221020110313 is a deficient number, since it is larger than the sum of its proper divisors (8355637654423).

121221020110313 is a wasteful number, since it uses less digits than its factorization.

121221020110313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128548271655.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 121221020110313 its reverse (313011020122121), we get a palindrome (434232040232434).

The spelling of 121221020110313 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty million, one hundred ten thousand, three hundred thirteen".