243130042 has 8 divisors (see below), whose sum is σ = 383889600. Its totient is φ = 115166844.

The previous prime is 243130031. The next prime is 243130051. The reversal of 243130042 is 240031342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×243130042² = 118224434645843528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 3199042 + ... + 3199117.

It is an arithmetic number, because the mean of its divisors is an integer number (47986200).

Almost surely, 2^243130042 is an apocalyptic number.

243130042 is a deficient number, since it is larger than the sum of its proper divisors (140759558).

243130042 is a wasteful number, since it uses less digits than its factorization.

243130042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6398180.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 243130042 is about 15592.6278093207. The cubic root of 243130042 is about 624.1364432210.

Adding to 243130042 its reverse (240031342), we get a palindrome (483161384).

It can be divided in two parts, 2431300 and 42, that added together give a palindrome (2431342).

The spelling of 243130042 in words is "two hundred forty-three million, one hundred thirty thousand, forty-two".