123122201321 has 16 divisors (see below), whose sum is σ = 153224419200. Its totient is φ = 96531378048.

The previous prime is 123122201317. The next prime is 123122201341. The reversal of 123122201321 is 123102221321.

It is not a de Polignac number, because 123122201321 - 2² = 123122201317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123122201293 and 123122201302.

It is not an unprimeable number, because it can be changed into a prime (123122201341) 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, 15957020 + ... + 15964733.

It is an arithmetic number, because the mean of its divisors is an integer number (9576526200).

Almost surely, 2^123122201321 is an apocalyptic number.

It is an amenable number.

123122201321 is a deficient number, since it is larger than the sum of its proper divisors (30102217879).

123122201321 is a wasteful number, since it uses less digits than its factorization.

123122201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31921808.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123122201321 its reverse (123102221321), we get a palindrome (246224422642).

The spelling of 123122201321 in words is "one hundred twenty-three billion, one hundred twenty-two million, two hundred one thousand, three hundred twenty-one".