232520130 has 24 divisors (see below), whose sum is σ = 604552572. Its totient is φ = 62005344.

The previous prime is 232520129. The next prime is 232520137. The reversal of 232520130 is 31025232.

It can be written as a sum of positive squares in 2 ways, for example, as 230705721 + 1814409 = 15189^2 + 1347^2 .

It is a super-3 number, since 3×232520130³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 (232520137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1291689 + ... + 1291868.

Almost surely, 2^232520130 is an apocalyptic number.

232520130 is an abundant number, since it is smaller than the sum of its proper divisors (372032442).

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

232520130 is a wasteful number, since it uses less digits than its factorization.

232520130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583570 (or 2583567 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 232520130 is about 15248.6107563935. The cubic root of 232520130 is about 614.9222189952.

Adding to 232520130 its reverse (31025232), we get a palindrome (263545362).

The spelling of 232520130 in words is "two hundred thirty-two million, five hundred twenty thousand, one hundred thirty".