321120413 has 4 divisors (see below), whose sum is σ = 331479168. Its totient is φ = 310761660.

The previous prime is 321120379. The next prime is 321120419. The reversal of 321120413 is 314021123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321120413 - 2²⁰ = 320071837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321120391 and 321120400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321120419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5179331 + ... + 5179392.

It is an arithmetic number, because the mean of its divisors is an integer number (82869792).

Almost surely, 2^321120413 is an apocalyptic number.

It is an amenable number.

321120413 is a deficient number, since it is larger than the sum of its proper divisors (10358755).

321120413 is a wasteful number, since it uses less digits than its factorization.

321120413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10358754.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 321120413 is about 17919.8329512303. The cubic root of 321120413 is about 684.7877318386.

Adding to 321120413 its reverse (314021123), we get a palindrome (635141536).

The spelling of 321120413 in words is "three hundred twenty-one million, one hundred twenty thousand, four hundred thirteen".