321313479405 has 8 divisors (see below), whose sum is σ = 514101567072. Its totient is φ = 171367189008.

The previous prime is 321313479401. The next prime is 321313479413. The reversal of 321313479405 is 504974313123.

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

It is not a de Polignac number, because 321313479405 - 2² = 321313479401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321313479401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10710449299 + ... + 10710449328.

It is an arithmetic number, because the mean of its divisors is an integer number (64262695884).

Almost surely, 2^321313479405 is an apocalyptic number.

It is an amenable number.

321313479405 is a deficient number, since it is larger than the sum of its proper divisors (192788087667).

321313479405 is a wasteful number, since it uses less digits than its factorization.

321313479405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21420898635.

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 321313479405 in words is "three hundred twenty-one billion, three hundred thirteen million, four hundred seventy-nine thousand, four hundred five".