130320232 has 64 divisors (see below), whose sum is σ = 297285120. Its totient is φ = 52282368.

The previous prime is 130320227. The next prime is 130320233. The reversal of 130320232 is 232023031.

It is not an unprimeable number, because it can be changed into a prime (130320233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349198 + ... + 349570.

It is an arithmetic number, because the mean of its divisors is an integer number (4645080).

Almost surely, 2^130320232 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 130320232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148642560).

130320232 is an abundant number, since it is smaller than the sum of its proper divisors (166964888).

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

130320232 is a wasteful number, since it uses less digits than its factorization.

130320232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 766 counting only the distinct ones).

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

The square root of 130320232 is about 11415.7887156342. The cubic root of 130320232 is about 506.9953173217.

Adding to 130320232 its reverse (232023031), we get a palindrome (362343263).

The spelling of 130320232 in words is "one hundred thirty million, three hundred twenty thousand, two hundred thirty-two".