123310593 has 24 divisors (see below), whose sum is σ = 211102528. Its totient is φ = 70462224.

The previous prime is 123310559. The next prime is 123310601. The reversal of 123310593 is 395013321.

It is a happy number.

It is not a de Polignac number, because 123310593 - 2¹⁴ = 123294209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123310543) 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 in 23 ways as a sum of consecutive naturals, for example, 34546 + ... + 37947.

Almost surely, 2^123310593 is an apocalyptic number.

It is an amenable number.

123310593 is a deficient number, since it is larger than the sum of its proper divisors (87791935).

123310593 is an frugal number, since it uses more digits than its factorization.

123310593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72515 (or 72503 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 123310593 is about 11104.5302917323. The cubic root of 123310593 is about 497.7372325478.

The spelling of 123310593 in words is "one hundred twenty-three million, three hundred ten thousand, five hundred ninety-three".