123220323321 has 16 divisors (see below), whose sum is σ = 174456576000. Its totient is φ = 77093169408.

The previous prime is 123220323319. The next prime is 123220323323. The reversal of 123220323321 is 123323022321.

It is an interprime number because it is at equal distance from previous prime (123220323319) and next prime (123220323323).

It is not a de Polignac number, because 123220323321 - 2¹ = 123220323319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123220323291 and 123220323300.

It is not an unprimeable number, because it can be changed into a prime (123220323323) 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 15 ways as a sum of consecutive naturals, for example, 3443641 + ... + 3479238.

It is an arithmetic number, because the mean of its divisors is an integer number (10903536000).

Almost surely, 2^123220323321 is an apocalyptic number.

It is an amenable number.

123220323321 is a deficient number, since it is larger than the sum of its proper divisors (51236252679).

123220323321 is a wasteful number, since it uses less digits than its factorization.

123220323321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6923248.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 123220323321 its reverse (123323022321), we get a palindrome (246543345642).

The spelling of 123220323321 in words is "one hundred twenty-three billion, two hundred twenty million, three hundred twenty-three thousand, three hundred twenty-one".