123300403 has 4 divisors (see below), whose sum is σ = 123694648. Its totient is φ = 122906160.

The previous prime is 123300377. The next prime is 123300413. The reversal of 123300403 is 304003321.

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 123300403 - 2¹⁷ = 123169331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123300413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196653 + ... + 197278.

It is an arithmetic number, because the mean of its divisors is an integer number (30923662).

Almost surely, 2^123300403 is an apocalyptic number.

123300403 is a deficient number, since it is larger than the sum of its proper divisors (394245).

123300403 is an equidigital number, since it uses as much as digits as its factorization.

123300403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394244.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 123300403 is about 11104.0714605049. The cubic root of 123300403 is about 497.7235216897.

Adding to 123300403 its reverse (304003321), we get a palindrome (427303724).

The spelling of 123300403 in words is "one hundred twenty-three million, three hundred thousand, four hundred three".