243232231988 has 24 divisors (see below), whose sum is σ = 434081265408. Its totient is φ = 119213178656.

The previous prime is 243232231987. The next prime is 243232231997. The reversal of 243232231988 is 889132232342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243232231981) 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, 286256 + ... + 753927.

It is an arithmetic number, because the mean of its divisors is an integer number (18086719392).

Almost surely, 2^243232231988 is an apocalyptic number.

It is an amenable number.

243232231988 is a deficient number, since it is larger than the sum of its proper divisors (190849033420).

243232231988 is a wasteful number, since it uses less digits than its factorization.

243232231988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041343 (or 1041341 counting only the distinct ones).

The product of its digits is 995328, while the sum is 47.

The spelling of 243232231988 in words is "two hundred forty-three billion, two hundred thirty-two million, two hundred thirty-one thousand, nine hundred eighty-eight".