123110256 has 40 divisors (see below), whose sum is σ = 318729600. Its totient is φ = 40947136.

The previous prime is 123110233. The next prime is 123110257. The reversal of 123110256 is 652011321.

It is a super-2 number, since 2×123110256² = 30312270264771072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123110257) 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 in 7 ways as a sum of consecutive naturals, for example, 21595 + ... + 26693.

It is an arithmetic number, because the mean of its divisors is an integer number (7968240).

Almost surely, 2^123110256 is an apocalyptic number.

123110256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123110256 is an abundant number, since it is smaller than the sum of its proper divisors (195619344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123110256 is a wasteful number, since it uses less digits than its factorization.

123110256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5613 (or 5607 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 123110256 is about 11095.5061173432. The cubic root of 123110256 is about 497.4675362435.

Adding to 123110256 its reverse (652011321), we get a palindrome (775121577).

The spelling of 123110256 in words is "one hundred twenty-three million, one hundred ten thousand, two hundred fifty-six".