130303232 has 72 divisors (see below), whose sum is σ = 279619200. Its totient is φ = 60383232.

The previous prime is 130303213. The next prime is 130303237. The reversal of 130303232 is 232303031.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 130303232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130303237) 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, 343619 + ... + 343997.

It is an arithmetic number, because the mean of its divisors is an integer number (3883600).

Almost surely, 2^130303232 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 130303232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139809600).

130303232 is an abundant number, since it is smaller than the sum of its proper divisors (149315968).

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

130303232 is an equidigital number, since it uses as much as digits as its factorization.

130303232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 130303232 is about 11415.0441085438. The cubic root of 130303232 is about 506.9732708723.

Adding to 130303232 its reverse (232303031), we get a palindrome (362606263).

The spelling of 130303232 in words is "one hundred thirty million, three hundred three thousand, two hundred thirty-two".