321123413 has 8 divisors (see below), whose sum is σ = 346214400. Its totient is φ = 296088048.

The previous prime is 321123403. The next prime is 321123419. The reversal of 321123413 is 314321123.

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 321123413 - 2⁶ = 321123349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321123419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1493 + ... + 25386.

It is an arithmetic number, because the mean of its divisors is an integer number (43276800).

Almost surely, 2^321123413 is an apocalyptic number.

It is an amenable number.

321123413 is a deficient number, since it is larger than the sum of its proper divisors (25090987).

321123413 is a wasteful number, since it uses less digits than its factorization.

321123413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27811.

The product of its digits is 432, while the sum is 20.

The square root of 321123413 is about 17919.9166571723. The cubic root of 321123413 is about 684.7898643271.

Adding to 321123413 its reverse (314321123), we get a palindrome (635444536).

The spelling of 321123413 in words is "three hundred twenty-one million, one hundred twenty-three thousand, four hundred thirteen".