321071104 has 48 divisors (see below), whose sum is σ = 645896160. Its totient is φ = 159559680.

The previous prime is 321071087. The next prime is 321071111. The reversal of 321071104 is 401170123.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431757 + ... + 432499.

It is an arithmetic number, because the mean of its divisors is an integer number (13456170).

Almost surely, 2^321071104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321071104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322948080).

321071104 is an abundant number, since it is smaller than the sum of its proper divisors (324825056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321071104 is an equidigital number, since it uses as much as digits as its factorization.

321071104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 956 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 321071104 is about 17918.4570764338. The cubic root of 321071104 is about 684.7526796428.

The spelling of 321071104 in words is "three hundred twenty-one million, seventy-one thousand, one hundred four".