130231530 has 128 divisors (see below), whose sum is σ = 408119040. Its totient is φ = 29134080.

The previous prime is 130231499. The next prime is 130231531. The reversal of 130231530 is 35132031.

130231530 is a `hidden beast` number, since 130 + 2 + 3 + 1 + 530 = 666.

It is a super-2 number, since 2×130231530² = 33920502812281800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (130231531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36924 + ... + 40296.

It is an arithmetic number, because the mean of its divisors is an integer number (3188430).

Almost surely, 2^130231530 is an apocalyptic number.

130231530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 130231530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204059520).

130231530 is an abundant number, since it is smaller than the sum of its proper divisors (277887510).

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

130231530 is a wasteful number, since it uses less digits than its factorization.

130231530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413 (or 3407 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 130231530 is about 11411.9029964332. The cubic root of 130231530 is about 506.8802630306.

Adding to 130231530 its reverse (35132031), we get a palindrome (165363561).

The spelling of 130231530 in words is "one hundred thirty million, two hundred thirty-one thousand, five hundred thirty".