120123361 has 2 divisors, whose sum is σ = 120123362. Its totient is φ = 120123360.

The previous prime is 120123359. The next prime is 120123379. The reversal of 120123361 is 163321021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83448225 + 36675136 = 9135^2 + 6056^2 .

It is a cyclic number.

It is not a de Polignac number, because 120123361 - 2¹ = 120123359 is a prime.

Together with 120123359, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120123061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60061680 + 60061681.

It is an arithmetic number, because the mean of its divisors is an integer number (60061681).

Almost surely, 2^120123361 is an apocalyptic number.

It is an amenable number.

120123361 is a deficient number, since it is larger than the sum of its proper divisors (1).

120123361 is an equidigital number, since it uses as much as digits as its factorization.

120123361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 120123361 is about 10960.0803372968. The cubic root of 120123361 is about 493.4113760857.

Adding to 120123361 its reverse (163321021), we get a palindrome (283444382).

The spelling of 120123361 in words is "one hundred twenty million, one hundred twenty-three thousand, three hundred sixty-one".