130323520 has 56 divisors (see below), whose sum is σ = 323843904. Its totient is φ = 49860096.

The previous prime is 130323499. The next prime is 130323521. The reversal of 130323520 is 25323031.

It is not an unprimeable number, because it can be changed into a prime (130323521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1494 + ... + 16213.

Almost surely, 2^130323520 is an apocalyptic number.

130323520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130323520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161921952).

130323520 is an abundant number, since it is smaller than the sum of its proper divisors (193520384).

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

130323520 is a wasteful number, since it uses less digits than its factorization.

130323520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17747 (or 17737 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 130323520 is about 11415.9327258004. The cubic root of 130323520 is about 506.9995811431. Note that the first 3 decimals are identical.

Adding to 130323520 its reverse (25323031), we get a palindrome (155646551).

The spelling of 130323520 in words is "one hundred thirty million, three hundred twenty-three thousand, five hundred twenty".