123210221003 has 16 divisors (see below), whose sum is σ = 133662091680. Its totient is φ = 113138827776.

The previous prime is 123210220997. The next prime is 123210221027. The reversal of 123210221003 is 300122012321.

It is a cyclic number.

It is not a de Polignac number, because 123210221003 - 2¹⁴ = 123210204619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123210221803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220700 + ... + 543257.

It is an arithmetic number, because the mean of its divisors is an integer number (8353880730).

Almost surely, 2^123210221003 is an apocalyptic number.

123210221003 is a deficient number, since it is larger than the sum of its proper divisors (10451870677).

123210221003 is a wasteful number, since it uses less digits than its factorization.

123210221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764206.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 123210221003 its reverse (300122012321), we get a palindrome (423332233324).

The spelling of 123210221003 in words is "one hundred twenty-three billion, two hundred ten million, two hundred twenty-one thousand, three".