243423918928120 has 128 divisors (see below), whose sum is σ = 626384721853440. Its totient is φ = 83401311513600.

The previous prime is 243423918928037. The next prime is 243423918928121. The reversal of 243423918928120 is 21829819324342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243423918928121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3294684699 + ... + 3294758581.

It is an arithmetic number, because the mean of its divisors is an integer number (4893630639480).

Almost surely, 2^{243423918928120} is an apocalyptic number.

243423918928120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243423918928120 is an abundant number, since it is smaller than the sum of its proper divisors (382960802925320).

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

243423918928120 is a wasteful number, since it uses less digits than its factorization.

243423918928120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81965 (or 81961 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 58.

The spelling of 243423918928120 in words is "two hundred forty-three trillion, four hundred twenty-three billion, nine hundred eighteen million, nine hundred twenty-eight thousand, one hundred twenty".