123201003 has 4 divisors (see below), whose sum is σ = 164268008. Its totient is φ = 82134000.

The previous prime is 123200999. The next prime is 123201011. The reversal of 123201003 is 300102321.

It is a happy number.

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

It is not a de Polignac number, because 123201003 - 2² = 123200999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123201003.

It is not an unprimeable number, because it can be changed into a prime (123201103) 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, 20533498 + ... + 20533503.

It is an arithmetic number, because the mean of its divisors is an integer number (41067002).

Almost surely, 2^123201003 is an apocalyptic number.

123201003 is a deficient number, since it is larger than the sum of its proper divisors (41067005).

123201003 is an equidigital number, since it uses as much as digits as its factorization.

123201003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41067004.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 123201003 is about 11099.5947223311. The cubic root of 123201003 is about 497.5897372699.

Adding to 123201003 its reverse (300102321), we get a palindrome (423303324).

The spelling of 123201003 in words is "one hundred twenty-three million, two hundred one thousand, three".