130320340 has 12 divisors (see below), whose sum is σ = 273672756. Its totient is φ = 52128128.

The previous prime is 130320319. The next prime is 130320343. The reversal of 130320340 is 43023031.

It can be written as a sum of positive squares in 2 ways, for example, as 84676804 + 45643536 = 9202^2 + 6756^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130320343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3257989 + ... + 3258028.

It is an arithmetic number, because the mean of its divisors is an integer number (22806063).

Almost surely, 2^130320340 is an apocalyptic number.

130320340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130320340 is an abundant number, since it is smaller than the sum of its proper divisors (143352416).

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

130320340 is a wasteful number, since it uses less digits than its factorization.

130320340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6516026 (or 6516024 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 130320340 is about 11415.7934459239. The cubic root of 130320340 is about 506.9954573753.

Adding to 130320340 its reverse (43023031), we get a palindrome (173343371).

The spelling of 130320340 in words is "one hundred thirty million, three hundred twenty thousand, three hundred forty".