123530443 has 8 divisors (see below), whose sum is σ = 130482176. Its totient is φ = 116764200.

The previous prime is 123530431. The next prime is 123530461. The reversal of 123530443 is 344035321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123530443 - 2⁵ = 123530411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123530413) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45003 + ... + 47668.

It is an arithmetic number, because the mean of its divisors is an integer number (16310272).

Almost surely, 2^123530443 is an apocalyptic number.

123530443 is a deficient number, since it is larger than the sum of its proper divisors (6951733).

123530443 is an equidigital number, since it uses as much as digits as its factorization.

123530443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92745.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 123530443 is about 11114.4249963730. The cubic root of 123530443 is about 498.0328615488.

Adding to 123530443 its reverse (344035321), we get a palindrome (467565764).

The spelling of 123530443 in words is "one hundred twenty-three million, five hundred thirty thousand, four hundred forty-three".