243130112 has 36 divisors (see below), whose sum is σ = 490363776. Its totient is φ = 120299520.

The previous prime is 243130109. The next prime is 243130169. The reversal of 243130112 is 211031342.

It is a super-2 number, since 2×243130112² = 118224502722265088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19937 + ... + 29727.

It is an arithmetic number, because the mean of its divisors is an integer number (13621216).

Almost surely, 2^243130112 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 243130112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245181888).

243130112 is an abundant number, since it is smaller than the sum of its proper divisors (247233664).

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

243130112 is an frugal number, since it uses more digits than its factorization.

243130112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9904 (or 9890 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 243130112 is about 15592.6300539710. The cubic root of 243130112 is about 624.1365031198.

Adding to 243130112 its reverse (211031342), we get a palindrome (454161454).

The spelling of 243130112 in words is "two hundred forty-three million, one hundred thirty thousand, one hundred twelve".