243338121930 has 16 divisors (see below), whose sum is σ = 584011492704. Its totient is φ = 64890165840.

The previous prime is 243338121899. The next prime is 243338121931. The reversal of 243338121930 is 39121833342.

It is not an unprimeable number, because it can be changed into a prime (243338121931) 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, 4055635336 + ... + 4055635395.

It is an arithmetic number, because the mean of its divisors is an integer number (36500718294).

Almost surely, 2^243338121930 is an apocalyptic number.

243338121930 is an abundant number, since it is smaller than the sum of its proper divisors (340673370774).

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

243338121930 is a wasteful number, since it uses less digits than its factorization.

243338121930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8111270741.

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 243338121930 in words is "two hundred forty-three billion, three hundred thirty-eight million, one hundred twenty-one thousand, nine hundred thirty".