321311413 has 8 divisors (see below), whose sum is σ = 339449120. Its totient is φ = 303296400.

The previous prime is 321311377. The next prime is 321311447. The reversal of 321311413 is 314113123.

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 321311413 - 2¹³ = 321303221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321311453) 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, 25263 + ... + 35788.

It is an arithmetic number, because the mean of its divisors is an integer number (42431140).

Almost surely, 2^321311413 is an apocalyptic number.

It is an amenable number.

321311413 is a deficient number, since it is larger than the sum of its proper divisors (18137707).

321311413 is a wasteful number, since it uses less digits than its factorization.

321311413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61347.

The product of its digits is 216, while the sum is 19.

The square root of 321311413 is about 17925.1614497611. The cubic root of 321311413 is about 684.9234737889.

Adding to 321311413 its reverse (314113123), we get a palindrome (635424536).

The spelling of 321311413 in words is "three hundred twenty-one million, three hundred eleven thousand, four hundred thirteen".