123530863 has 4 divisors (see below), whose sum is σ = 125861688. Its totient is φ = 121200040.

The previous prime is 123530839. The next prime is 123530867. The reversal of 123530863 is 368035321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368035321 = 2551 ⋅144271.

It is a cyclic number.

It is not a de Polignac number, because 123530863 - 2⁵ = 123530831 is a prime.

It is a super-2 number, since 2×123530863² = 30519748227049538, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123530867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1165333 + ... + 1165438.

It is an arithmetic number, because the mean of its divisors is an integer number (31465422).

Almost surely, 2^123530863 is an apocalyptic number.

123530863 is a deficient number, since it is larger than the sum of its proper divisors (2330825).

123530863 is an equidigital number, since it uses as much as digits as its factorization.

123530863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330824.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 123530863 is about 11114.4438907217. The cubic root of 123530863 is about 498.0334259807.

The spelling of 123530863 in words is "one hundred twenty-three million, five hundred thirty thousand, eight hundred sixty-three".