120321310121 has 2 divisors, whose sum is σ = 120321310122. Its totient is φ = 120321310120.

The previous prime is 120321310117. The next prime is 120321310133. The reversal of 120321310121 is 121013123021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119664105625 + 657204496 = 345925^2 + 25636^2 .

It is a cyclic number.

It is not a de Polignac number, because 120321310121 - 2² = 120321310117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120321310121.

It is not a weakly prime, because it can be changed into another prime (120321310111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60160655060 + 60160655061.

It is an arithmetic number, because the mean of its divisors is an integer number (60160655061).

Almost surely, 2^120321310121 is an apocalyptic number.

It is an amenable number.

120321310121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120321310121 is an equidigital number, since it uses as much as digits as its factorization.

120321310121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 120321310121 its reverse (121013123021), we get a palindrome (241334433142).

The spelling of 120321310121 in words is "one hundred twenty billion, three hundred twenty-one million, three hundred ten thousand, one hundred twenty-one".