123432030 has 48 divisors (see below), whose sum is σ = 334882080. Its totient is φ = 31483584.

The previous prime is 123432013. The next prime is 123432077. The reversal of 123432030 is 30234321.

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

It is a junction number, because it is equal to n+sod(n) for n = 123431994 and 123432012.

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 23 ways as a sum of consecutive naturals, for example, 27745 + ... + 31884.

It is an arithmetic number, because the mean of its divisors is an integer number (6976710).

Almost surely, 2^123432030 is an apocalyptic number.

123432030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123432030 is an abundant number, since it is smaller than the sum of its proper divisors (211450050).

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

123432030 is a wasteful number, since it uses less digits than its factorization.

123432030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59665 (or 59662 counting only the distinct ones).

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

The square root of 123432030 is about 11109.9968496845. The cubic root of 123432030 is about 497.9005704625.

Adding to 123432030 its reverse (30234321), we get a palindrome (153666351).

The spelling of 123432030 in words is "one hundred twenty-three million, four hundred thirty-two thousand, thirty".