243232320130 has 16 divisors (see below), whose sum is σ = 449651100600. Its totient is φ = 94663389312.

The previous prime is 243232320103. The next prime is 243232320131. The reversal of 243232320130 is 31023232342.

It can be written as a sum of positive squares in 4 ways, for example, as 231926038569 + 11306281561 = 481587^2 + 106331^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243232320095 and 243232320104.

It is not an unprimeable number, because it can be changed into a prime (243232320131) 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, 328691955 + ... + 328692694.

Almost surely, 2^243232320130 is an apocalyptic number.

243232320130 is a deficient number, since it is larger than the sum of its proper divisors (206418780470).

243232320130 is a wasteful number, since it uses less digits than its factorization.

243232320130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657384693.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 243232320130 its reverse (31023232342), we get a palindrome (274255552472).

The spelling of 243232320130 in words is "two hundred forty-three billion, two hundred thirty-two million, three hundred twenty thousand, one hundred thirty".