123113223321 has 32 divisors (see below), whose sum is σ = 189786820608. Its totient is φ = 70158608640.

The previous prime is 123113223313. The next prime is 123113223323. The reversal of 123113223321 is 123322311321.

It is not a de Polignac number, because 123113223321 - 2³ = 123113223313 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123113223291 and 123113223300.

It is not an unprimeable number, because it can be changed into a prime (123113223323) 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 31 ways as a sum of consecutive naturals, for example, 493120 + ... + 699566.

It is an arithmetic number, because the mean of its divisors is an integer number (5930838144).

Almost surely, 2^123113223321 is an apocalyptic number.

123113223321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123113223321 is a deficient number, since it is larger than the sum of its proper divisors (66673597287).

123113223321 is a wasteful number, since it uses less digits than its factorization.

123113223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207541.

The product of its digits is 1296, while the sum is 24.

Adding to 123113223321 its reverse (123322311321), we get a palindrome (246435534642).

The spelling of 123113223321 in words is "one hundred twenty-three billion, one hundred thirteen million, two hundred twenty-three thousand, three hundred twenty-one".