320302120210121 has 32 divisors (see below), whose sum is σ = 388084947959808. Its totient is φ = 258504721686720.

The previous prime is 320302120210109. The next prime is 320302120210159. The reversal of 320302120210121 is 121012021203023.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320302120210121 is a prime.

It is a super-2 number, since 2×320302120210121² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320302120210093 and 320302120210102.

It is not an unprimeable number, because it can be changed into a prime (320302120210181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 982289516 + ... + 982615538.

It is an arithmetic number, because the mean of its divisors is an integer number (12127654623744).

Almost surely, 2^{320302120210121} is an apocalyptic number.

320302120210121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

320302120210121 is a deficient number, since it is larger than the sum of its proper divisors (67782827749687).

320302120210121 is a wasteful number, since it uses less digits than its factorization.

320302120210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448461.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 320302120210121 its reverse (121012021203023), we get a palindrome (441314141413144).

The spelling of 320302120210121 in words is "three hundred twenty trillion, three hundred two billion, one hundred twenty million, two hundred ten thousand, one hundred twenty-one".