243232320132 has 18 divisors (see below), whose sum is σ = 614837253758. Its totient is φ = 81077440032.

The previous prime is 243232320131. The next prime is 243232320169. The reversal of 243232320132 is 231023232342.

243232320132 is a `hidden beast` number, since 2 + 4 + 323 + 2 + 320 + 13 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 196837744896 + 46394575236 = 443664^2 + 215394^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 243232320096 and 243232320105.

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 5 ways as a sum of consecutive naturals, for example, 3378226633 + ... + 3378226704.

Almost surely, 2^243232320132 is an apocalyptic number.

It is an amenable number.

243232320132 is an abundant number, since it is smaller than the sum of its proper divisors (371604933626).

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

243232320132 is a wasteful number, since it uses less digits than its factorization.

243232320132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6756453347 (or 6756453342 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 243232320132 its reverse (231023232342), we get a palindrome (474255552474).

The spelling of 243232320132 in words is "two hundred forty-three billion, two hundred thirty-two million, three hundred twenty thousand, one hundred thirty-two".