243331421996 has 12 divisors (see below), whose sum is σ = 458586141552. Its totient is φ = 112306810128.

The previous prime is 243331421953. The next prime is 243331422043. The reversal of 243331421996 is 699124133342.

It is a self number, because there is not a number n which added to its sum of digits gives 243331421996.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2339725160 + ... + 2339725263.

It is an arithmetic number, because the mean of its divisors is an integer number (38215511796).

Almost surely, 2^243331421996 is an apocalyptic number.

243331421996 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

243331421996 is a deficient number, since it is larger than the sum of its proper divisors (215254719556).

243331421996 is a wasteful number, since it uses less digits than its factorization.

243331421996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4679450440 (or 4679450438 counting only the distinct ones).

The product of its digits is 839808, while the sum is 47.

The spelling of 243331421996 in words is "two hundred forty-three billion, three hundred thirty-one million, four hundred twenty-one thousand, nine hundred ninety-six".