123255230223 has 4 divisors (see below), whose sum is σ = 164340306968. Its totient is φ = 82170153480.

The previous prime is 123255230221. The next prime is 123255230227. The reversal of 123255230223 is 322032552321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 123255230223 - 2¹ = 123255230221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123255230221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20542538368 + ... + 20542538373.

It is an arithmetic number, because the mean of its divisors is an integer number (41085076742).

Almost surely, 2^123255230223 is an apocalyptic number.

123255230223 is a deficient number, since it is larger than the sum of its proper divisors (41085076745).

123255230223 is an equidigital number, since it uses as much as digits as its factorization.

123255230223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41085076744.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 123255230223 its reverse (322032552321), we get a palindrome (445287782544).

The spelling of 123255230223 in words is "one hundred twenty-three billion, two hundred fifty-five million, two hundred thirty thousand, two hundred twenty-three".