123320003221 has 16 divisors (see below), whose sum is σ = 126798566400. Its totient is φ = 119890927728.

The previous prime is 123320003201. The next prime is 123320003267. The reversal of 123320003221 is 122300023321.

It is a cyclic number.

It is not a de Polignac number, because 123320003221 - 2²¹ = 123317906069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123320003201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20761470 + ... + 20767408.

It is an arithmetic number, because the mean of its divisors is an integer number (7924910400).

Almost surely, 2^123320003221 is an apocalyptic number.

It is an amenable number.

123320003221 is a deficient number, since it is larger than the sum of its proper divisors (3478563179).

123320003221 is an equidigital number, since it uses as much as digits as its factorization.

123320003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 123320003221 its reverse (122300023321), we get a palindrome (245620026542).

The spelling of 123320003221 in words is "one hundred twenty-three billion, three hundred twenty million, three thousand, two hundred twenty-one".