320020115242121 has 8 divisors (see below), whose sum is σ = 367334380566720. Its totient is φ = 273105126418608.

The previous prime is 320020115242031. The next prime is 320020115242159. The reversal of 320020115242121 is 121242511020023.

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 320020115242121 - 2⁴⁶ = 249651371064457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320020115242181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99819123551 + ... + 99819126756.

It is an arithmetic number, because the mean of its divisors is an integer number (45916797570840).

Almost surely, 2^{320020115242121} is an apocalyptic number.

It is an amenable number.

320020115242121 is a deficient number, since it is larger than the sum of its proper divisors (47314265324599).

320020115242121 is a wasteful number, since it uses less digits than its factorization.

320020115242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199638250543.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 320020115242121 its reverse (121242511020023), we get a palindrome (441262626262144).

The spelling of 320020115242121 in words is "three hundred twenty trillion, twenty billion, one hundred fifteen million, two hundred forty-two thousand, one hundred twenty-one".