123133230 has 96 divisors (see below), whose sum is σ = 361015200. Its totient is φ = 29842560.

The previous prime is 123133211. The next prime is 123133249. The reversal of 123133230 is 32331321.

It is an interprime number because it is at equal distance from previous prime (123133211) and next prime (123133249).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30786 + ... + 34554.

It is an arithmetic number, because the mean of its divisors is an integer number (3760575).

Almost surely, 2^123133230 is an apocalyptic number.

123133230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123133230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180507600).

123133230 is an abundant number, since it is smaller than the sum of its proper divisors (237881970).

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

123133230 is a wasteful number, since it uses less digits than its factorization.

123133230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807 (or 3790 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 123133230 is about 11096.5413530523. The cubic root of 123133230 is about 497.4984789900.

Adding to 123133230 its reverse (32331321), we get a palindrome (155464551).

The spelling of 123133230 in words is "one hundred twenty-three million, one hundred thirty-three thousand, two hundred thirty".