320111040 has 56 divisors (see below), whose sum is σ = 1016355600. Its totient is φ = 85362688.

The previous prime is 320111021. The next prime is 320111083. The reversal of 320111040 is 40111023.

It is a happy number.

320111040 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 (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165765 + ... + 167684.

Almost surely, 2^320111040 is an apocalyptic number.

320111040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320111040 is an abundant number, since it is smaller than the sum of its proper divisors (696244560).

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

320111040 is a wasteful number, since it uses less digits than its factorization.

320111040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333469 (or 333459 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 320111040 is about 17891.6472131551. The cubic root of 320111040 is about 684.0694844086.

Adding to 320111040 its reverse (40111023), we get a palindrome (360222063).

It can be divided in two parts, 3201 and 11040, that added together give a palindrome (14241).

The spelling of 320111040 in words is "three hundred twenty million, one hundred eleven thousand, forty".