120344120921 has 2 divisors, whose sum is σ = 120344120922. Its totient is φ = 120344120920.

The previous prime is 120344120867. The next prime is 120344121041. The reversal of 120344120921 is 129021443021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60399943696 + 59944177225 = 245764^2 + 244835^2 .

It is a cyclic number.

It is not a de Polignac number, because 120344120921 - 2⁶ = 120344120857 is a prime.

It is not a weakly prime, because it can be changed into another prime (120344120321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60172060460 + 60172060461.

It is an arithmetic number, because the mean of its divisors is an integer number (60172060461).

Almost surely, 2^120344120921 is an apocalyptic number.

It is an amenable number.

120344120921 is a deficient number, since it is larger than the sum of its proper divisors (1).

120344120921 is an equidigital number, since it uses as much as digits as its factorization.

120344120921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 120344120921 its reverse (129021443021), we get a palindrome (249365563942).

The spelling of 120344120921 in words is "one hundred twenty billion, three hundred forty-four million, one hundred twenty thousand, nine hundred twenty-one".