243043130 has 16 divisors (see below), whose sum is σ = 477248544. Its totient is φ = 88379280.

The previous prime is 243043127. The next prime is 243043133. The reversal of 243043130 is 31340342.

It is an interprime number because it is at equal distance from previous prime (243043127) and next prime (243043133).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243043133) 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, 1104632 + ... + 1104851.

It is an arithmetic number, because the mean of its divisors is an integer number (29828034).

Almost surely, 2^243043130 is an apocalyptic number.

243043130 is a deficient number, since it is larger than the sum of its proper divisors (234205414).

243043130 is a wasteful number, since it uses less digits than its factorization.

243043130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209501.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 243043130 is about 15589.8406021357. The cubic root of 243043130 is about 624.0620640794.

Adding to 243043130 its reverse (31340342), we get a palindrome (274383472).

The spelling of 243043130 in words is "two hundred forty-three million, forty-three thousand, one hundred thirty".