120031220321 has 2 divisors, whose sum is σ = 120031220322. Its totient is φ = 120031220320.

The previous prime is 120031220311. The next prime is 120031220339. The reversal of 120031220321 is 123022130021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74275871296 + 45755349025 = 272536^2 + 213905^2 .

It is a cyclic number.

It is not a de Polignac number, because 120031220321 - 2³⁴ = 102851351137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120031220321.

It is not a weakly prime, because it can be changed into another prime (120031220311) 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, 60015610160 + 60015610161.

It is an arithmetic number, because the mean of its divisors is an integer number (60015610161).

Almost surely, 2^120031220321 is an apocalyptic number.

It is an amenable number.

120031220321 is a deficient number, since it is larger than the sum of its proper divisors (1).

120031220321 is an equidigital number, since it uses as much as digits as its factorization.

120031220321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 120031220321 its reverse (123022130021), we get a palindrome (243053350342).

The spelling of 120031220321 in words is "one hundred twenty billion, thirty-one million, two hundred twenty thousand, three hundred twenty-one".