123440230 has 32 divisors (see below), whose sum is σ = 235853856. Its totient is φ = 46354944.

The previous prime is 123440227. The next prime is 123440257. The reversal of 123440230 is 32044321.

It is a junction number, because it is equal to n+sod(n) for n = 123440198 and 123440207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99172 + ... + 100408.

It is an arithmetic number, because the mean of its divisors is an integer number (7370433).

Almost surely, 2^123440230 is an apocalyptic number.

123440230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123440230 is a deficient number, since it is larger than the sum of its proper divisors (112413626).

123440230 is a wasteful number, since it uses less digits than its factorization.

123440230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 123440230 is about 11110.3658805640. The cubic root of 123440230 is about 497.9115959483.

Adding to 123440230 its reverse (32044321), we get a palindrome (155484551).

The spelling of 123440230 in words is "one hundred twenty-three million, four hundred forty thousand, two hundred thirty".