243220105344 has 96 divisors (see below), whose sum is σ = 681846225840. Its totient is φ = 76806305280.

The previous prime is 243220105343. The next prime is 243220105411. The reversal of 243220105344 is 443501022342.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (243220105343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 738642 + ... + 1015889.

Almost surely, 2^243220105344 is an apocalyptic number.

243220105344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243220105344 is an abundant number, since it is smaller than the sum of its proper divisors (438626120496).

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

243220105344 is a wasteful number, since it uses less digits than its factorization.

243220105344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754586 (or 1754555 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 243220105344 its reverse (443501022342), we get a palindrome (686721127686).

The spelling of 243220105344 in words is "two hundred forty-three billion, two hundred twenty million, one hundred five thousand, three hundred forty-four".