243203342130 has 64 divisors (see below), whose sum is σ = 741191143680. Its totient is φ = 55589334912.

The previous prime is 243203342051. The next prime is 243203342141. The reversal of 243203342130 is 31243302342.

243203342130 is a `hidden beast` number, since 2 + 4 + 3 + 203 + 3 + 421 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 243203342094 and 243203342103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64337619 + ... + 64341398.

It is an arithmetic number, because the mean of its divisors is an integer number (11581111620).

Almost surely, 2^243203342130 is an apocalyptic number.

243203342130 is an abundant number, since it is smaller than the sum of its proper divisors (497987801550).

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

243203342130 is a wasteful number, since it uses less digits than its factorization.

243203342130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128679040 (or 128679034 counting only the distinct ones).

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

Adding to 243203342130 its reverse (31243302342), we get a palindrome (274446644472).

The spelling of 243203342130 in words is "two hundred forty-three billion, two hundred three million, three hundred forty-two thousand, one hundred thirty".