321103405123 has 8 divisors (see below), whose sum is σ = 338184662720. Its totient is φ = 304040255400.

The previous prime is 321103405111. The next prime is 321103405157. The reversal of 321103405123 is 321504301123.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321103405123 - 2²⁵ = 321069850691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321103405423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4490553 + ... + 4561498.

It is an arithmetic number, because the mean of its divisors is an integer number (42273082840).

Almost surely, 2^321103405123 is an apocalyptic number.

321103405123 is a deficient number, since it is larger than the sum of its proper divisors (17081257597).

321103405123 is a wasteful number, since it uses less digits than its factorization.

321103405123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9053937.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 321103405123 its reverse (321504301123), we get a palindrome (642607706246).

The spelling of 321103405123 in words is "three hundred twenty-one billion, one hundred three million, four hundred five thousand, one hundred twenty-three".