1320340112 has 80 divisors (see below), whose sum is σ = 3221877120. Its totient is φ = 510160896.

The previous prime is 1320340019. The next prime is 1320340117. The reversal of 1320340112 is 2110430231.

It is a super-2 number, since 2×1320340112² = 3486596022712345088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1320340117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52064 + ... + 73152.

It is an arithmetic number, because the mean of its divisors is an integer number (40273464).

Almost surely, 2^1320340112 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 1320340112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1610938560).

1320340112 is an abundant number, since it is smaller than the sum of its proper divisors (1901537008).

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

1320340112 is a wasteful number, since it uses less digits than its factorization.

1320340112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21160 (or 21154 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1320340112 is about 36336.4845850558. The cubic root of 1320340112 is about 1097.0555169679.

Adding to 1320340112 its reverse (2110430231), we get a palindrome (3430770343).

The spelling of 1320340112 in words is "one billion, three hundred twenty million, three hundred forty thousand, one hundred twelve".