243703213388 has 12 divisors (see below), whose sum is σ = 428342985840. Its totient is φ = 121319503152.

The previous prime is 243703213379. The next prime is 243703213399. The reversal of 243703213388 is 883312307342.

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, 133024856 + ... + 133026687.

It is an arithmetic number, because the mean of its divisors is an integer number (35695248820).

Almost surely, 2^243703213388 is an apocalyptic number.

It is an amenable number.

243703213388 is a deficient number, since it is larger than the sum of its proper divisors (184639772452).

243703213388 is a wasteful number, since it uses less digits than its factorization.

243703213388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266051776 (or 266051774 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 243703213388 in words is "two hundred forty-three billion, seven hundred three million, two hundred thirteen thousand, three hundred eighty-eight".