123930241 has 2 divisors, whose sum is σ = 123930242. Its totient is φ = 123930240.

The previous prime is 123930227. The next prime is 123930263. The reversal of 123930241 is 142039321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109641841 + 14288400 = 10471^2 + 3780^2 .

It is an emirp because it is prime and its reverse (142039321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123930241 - 2²³ = 115541633 is a prime.

It is not a weakly prime, because it can be changed into another prime (123930341) 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, 61965120 + 61965121.

It is an arithmetic number, because the mean of its divisors is an integer number (61965121).

Almost surely, 2^123930241 is an apocalyptic number.

It is an amenable number.

123930241 is a deficient number, since it is larger than the sum of its proper divisors (1).

123930241 is an equidigital number, since it uses as much as digits as its factorization.

123930241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 123930241 is about 11132.3960134375. The cubic root of 123930241 is about 498.5695662879.

Adding to 123930241 its reverse (142039321), we get a palindrome (265969562).

The spelling of 123930241 in words is "one hundred twenty-three million, nine hundred thirty thousand, two hundred forty-one".