120121361 has 2 divisors, whose sum is σ = 120121362. Its totient is φ = 120121360.

The previous prime is 120121357. The next prime is 120121369. The reversal of 120121361 is 163121021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114918400 + 5202961 = 10720^2 + 2281^2 .

It is a cyclic number.

It is not a de Polignac number, because 120121361 - 2² = 120121357 is a prime.

It is not a weakly prime, because it can be changed into another prime (120121369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060680 + 60060681.

It is an arithmetic number, because the mean of its divisors is an integer number (60060681).

Almost surely, 2^120121361 is an apocalyptic number.

It is an amenable number.

120121361 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121361 is an equidigital number, since it uses as much as digits as its factorization.

120121361 is an odious number, because the sum of its binary digits is odd.

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

The square root of 120121361 is about 10959.9890967099. The cubic root of 120121361 is about 493.4086377113.

Adding to 120121361 its reverse (163121021), we get a palindrome (283242382).

The spelling of 120121361 in words is "one hundred twenty million, one hundred twenty-one thousand, three hundred sixty-one".