123423593 has 2 divisors, whose sum is σ = 123423594. Its totient is φ = 123423592.

The previous prime is 123423569. The next prime is 123423607. The reversal of 123423593 is 395324321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86359849 + 37063744 = 9293^2 + 6088^2 .

It is a cyclic number.

It is not a de Polignac number, because 123423593 - 2⁶ = 123423529 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (123423793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61711796 + 61711797.

It is an arithmetic number, because the mean of its divisors is an integer number (61711797).

Almost surely, 2^123423593 is an apocalyptic number.

It is an amenable number.

123423593 is a deficient number, since it is larger than the sum of its proper divisors (1).

123423593 is an equidigital number, since it uses as much as digits as its factorization.

123423593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 32.

The square root of 123423593 is about 11109.6171401178. The cubic root of 123423593 is about 497.8892258036.

The spelling of 123423593 in words is "one hundred twenty-three million, four hundred twenty-three thousand, five hundred ninety-three".