120101021321 has 2 divisors, whose sum is σ = 120101021322. Its totient is φ = 120101021320.

The previous prime is 120101021311. The next prime is 120101021389. The reversal of 120101021321 is 123120101021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73135630096 + 46965391225 = 270436^2 + 216715^2 .

It is an emirp because it is prime and its reverse (123120101021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120101021321 - 2²² = 120096827017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120101021296 and 120101021305.

It is not a weakly prime, because it can be changed into another prime (120101021311) 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, 60050510660 + 60050510661.

It is an arithmetic number, because the mean of its divisors is an integer number (60050510661).

Almost surely, 2^120101021321 is an apocalyptic number.

It is an amenable number.

120101021321 is a deficient number, since it is larger than the sum of its proper divisors (1).

120101021321 is an equidigital number, since it uses as much as digits as its factorization.

120101021321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 120101021321 its reverse (123120101021), we get a palindrome (243221122342).

The spelling of 120101021321 in words is "one hundred twenty billion, one hundred one million, twenty-one thousand, three hundred twenty-one".