123054121 has 2 divisors, whose sum is σ = 123054122. Its totient is φ = 123054120.

The previous prime is 123054101. The next prime is 123054179. The reversal of 123054121 is 121450321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97298496 + 25755625 = 9864^2 + 5075^2 .

It is an emirp because it is prime and its reverse (121450321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123054121 - 2⁷ = 123053993 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (123054101) 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, 61527060 + 61527061.

It is an arithmetic number, because the mean of its divisors is an integer number (61527061).

Almost surely, 2^123054121 is an apocalyptic number.

It is an amenable number.

123054121 is a deficient number, since it is larger than the sum of its proper divisors (1).

123054121 is an equidigital number, since it uses as much as digits as its factorization.

123054121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 123054121 is about 11092.9762011824. The cubic root of 123054121 is about 497.3919140965.

The spelling of 123054121 in words is "one hundred twenty-three million, fifty-four thousand, one hundred twenty-one".