123123203221003 has 4 divisors (see below), whose sum is σ = 124063075001448. Its totient is φ = 122183331440560.

The previous prime is 123123203220991. The next prime is 123123203221063. The reversal of 123123203221003 is 300122302321321.

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 123123203221003 - 2²¹ = 123123201123851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123123203221063) 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, 469935890026 + ... + 469935890287.

It is an arithmetic number, because the mean of its divisors is an integer number (31015768750362).

Almost surely, 2^{123123203221003} is an apocalyptic number.

123123203221003 is a deficient number, since it is larger than the sum of its proper divisors (939871780445).

123123203221003 is an equidigital number, since it uses as much as digits as its factorization.

123123203221003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939871780444.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 123123203221003 its reverse (300122302321321), we get a palindrome (423245505542324).

The spelling of 123123203221003 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, two hundred three million, two hundred twenty-one thousand, three".