243130030 has 32 divisors (see below), whose sum is σ = 514146528. Its totient is φ = 81609600.

The previous prime is 243130003. The next prime is 243130031. The reversal of 243130030 is 30031342.

It is a super-2 number, since 2×243130030² = 118224422975601800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243129986 and 243130013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243130031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83581 + ... + 86440.

It is an arithmetic number, because the mean of its divisors is an integer number (16067079).

Almost surely, 2^243130030 is an apocalyptic number.

243130030 is an abundant number, since it is smaller than the sum of its proper divisors (271016498).

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

243130030 is a wasteful number, since it uses less digits than its factorization.

243130030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170052.

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

The square root of 243130030 is about 15592.6274245234. The cubic root of 243130030 is about 624.1364329527.

Adding to 243130030 its reverse (30031342), we get a palindrome (273161372).

The spelling of 243130030 in words is "two hundred forty-three million, one hundred thirty thousand, thirty".