2120120101321 has 2 divisors, whose sum is σ = 2120120101322. Its totient is φ = 2120120101320.

The previous prime is 2120120101289. The next prime is 2120120101417. The reversal of 2120120101321 is 1231010210212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1718209748025 + 401910353296 = 1310805^2 + 633964^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120120101321 - 2⁵ = 2120120101289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120120101295 and 2120120101304.

It is not a weakly prime, because it can be changed into another prime (2120126101321) 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 as a sum of consecutive naturals, namely, 1060060050660 + 1060060050661.

It is an arithmetic number, because the mean of its divisors is an integer number (1060060050661).

Almost surely, 2^{2120120101321} is an apocalyptic number.

It is an amenable number.

2120120101321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120120101321 is an equidigital number, since it uses as much as digits as its factorization.

2120120101321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2120120101321 its reverse (1231010210212), we get a palindrome (3351130311533).

The spelling of 2120120101321 in words is "two trillion, one hundred twenty billion, one hundred twenty million, one hundred one thousand, three hundred twenty-one".