120331100321 has 2 divisors, whose sum is σ = 120331100322. Its totient is φ = 120331100320.

The previous prime is 120331100317. The next prime is 120331100327. The reversal of 120331100321 is 123001133021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117028989025 + 3302111296 = 342095^2 + 57464^2 .

It is a cyclic number.

It is not a de Polignac number, because 120331100321 - 2² = 120331100317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120331100321.

It is not a weakly prime, because it can be changed into another prime (120331100327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60165550160 + 60165550161.

It is an arithmetic number, because the mean of its divisors is an integer number (60165550161).

Almost surely, 2^120331100321 is an apocalyptic number.

It is an amenable number.

120331100321 is a deficient number, since it is larger than the sum of its proper divisors (1).

120331100321 is an equidigital number, since it uses as much as digits as its factorization.

120331100321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 120331100321 its reverse (123001133021), we get a palindrome (243332233342).

The spelling of 120331100321 in words is "one hundred twenty billion, three hundred thirty-one million, one hundred thousand, three hundred twenty-one".