321011082 has 96 divisors (see below), whose sum is σ = 820385280. Its totient is φ = 88814880.

The previous prime is 321011077. The next prime is 321011083. The reversal of 321011082 is 280110123.

It is a super-2 number, since 2×321011082² = 206096229533621448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (321011083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 969657 + ... + 969987.

It is an arithmetic number, because the mean of its divisors is an integer number (8545680).

Almost surely, 2^321011082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321011082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410192640).

321011082 is an abundant number, since it is smaller than the sum of its proper divisors (499374198).

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

321011082 is a wasteful number, since it uses less digits than its factorization.

321011082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 321011082 is about 17916.7821329613. The cubic root of 321011082 is about 684.7100070736.

The spelling of 321011082 in words is "three hundred twenty-one million, eleven thousand, eighty-two".