320111340 has 24 divisors (see below), whose sum is σ = 896311920. Its totient is φ = 85363008.

The previous prime is 320111339. The next prime is 320111353. The reversal of 320111340 is 43111023.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 2667535 + ... + 2667654.

It is an arithmetic number, because the mean of its divisors is an integer number (37346330).

Almost surely, 2^320111340 is an apocalyptic number.

320111340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320111340 is an abundant number, since it is smaller than the sum of its proper divisors (576200580).

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

320111340 is a wasteful number, since it uses less digits than its factorization.

320111340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335201 (or 5335199 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 320111340 is about 17891.6555969536. The cubic root of 320111340 is about 684.0696981061.

Adding to 320111340 its reverse (43111023), we get a palindrome (363222363).

It can be divided in two parts, 3201 and 11340, that added together give a palindrome (14541).

The spelling of 320111340 in words is "three hundred twenty million, one hundred eleven thousand, three hundred forty".