320113332 has 144 divisors (see below), whose sum is σ = 1068342912. Its totient is φ = 78243840.

The previous prime is 320113327. The next prime is 320113361. The reversal of 320113332 is 233311023.

320113332 is a `hidden beast` number, since 320 + 1 + 13 + 332 = 666.

320113332 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43728 + ... + 50520.

It is an arithmetic number, because the mean of its divisors is an integer number (7419048).

Almost surely, 2^320113332 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 320113332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534171456).

320113332 is an abundant number, since it is smaller than the sum of its proper divisors (748229580).

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

320113332 is a wasteful number, since it uses less digits than its factorization.

320113332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6838 (or 6833 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 320113332 is about 17891.7112652759. The cubic root of 320113332 is about 684.0711170541.

Adding to 320113332 its reverse (233311023), we get a palindrome (553424355).

The spelling of 320113332 in words is "three hundred twenty million, one hundred thirteen thousand, three hundred thirty-two".