243131442130 has 8 divisors (see below), whose sum is σ = 437636595852. Its totient is φ = 97252576848.

The previous prime is 243131442121. The next prime is 243131442131. The reversal of 243131442130 is 31244131342.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 222711317929 + 20420124201 = 471923^2 + 142899^2 .

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

It is a super-2 number, since 2×243131442130² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243131442131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12156572097 + ... + 12156572116.

Almost surely, 2^243131442130 is an apocalyptic number.

243131442130 is a deficient number, since it is larger than the sum of its proper divisors (194505153722).

243131442130 is a wasteful number, since it uses less digits than its factorization.

243131442130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24313144220.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 243131442130 its reverse (31244131342), we get a palindrome (274375573472).

The spelling of 243131442130 in words is "two hundred forty-three billion, one hundred thirty-one million, four hundred forty-two thousand, one hundred thirty".