123041563 has 4 divisors (see below), whose sum is σ = 130279320. Its totient is φ = 115803808.

The previous prime is 123041551. The next prime is 123041617. The reversal of 123041563 is 365140321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123041563 - 2⁵ = 123041531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123041363) 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 3 ways as a sum of consecutive naturals, for example, 3618853 + ... + 3618886.

It is an arithmetic number, because the mean of its divisors is an integer number (32569830).

Almost surely, 2^123041563 is an apocalyptic number.

123041563 is a deficient number, since it is larger than the sum of its proper divisors (7237757).

123041563 is an equidigital number, since it uses as much as digits as its factorization.

123041563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7237756.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 123041563 is about 11092.4101528928. The cubic root of 123041563 is about 497.3749934654.

Adding to 123041563 its reverse (365140321), we get a palindrome (488181884).

The spelling of 123041563 in words is "one hundred twenty-three million, forty-one thousand, five hundred sixty-three".