123423300 has 432 divisors, whose sum is σ = 523216512. Its totient is φ = 23500800.

The previous prime is 123423283. The next prime is 123423319. The reversal of 123423300 is 3324321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 900832 + ... + 900968.

Almost surely, 2^123423300 is an apocalyptic number.

123423300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123423300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261608256).

123423300 is an abundant number, since it is smaller than the sum of its proper divisors (399793212).

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

123423300 is a wasteful number, since it uses less digits than its factorization.

123423300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 123423300 is about 11109.6039533370. The cubic root of 123423300 is about 497.8888318172. Note that the first 4 decimals are identical.

Adding to 123423300 its reverse (3324321), we get a palindrome (126747621).

The spelling of 123423300 in words is "one hundred twenty-three million, four hundred twenty-three thousand, three hundred".