243023423112240 has 80 divisors (see below), whose sum is σ = 753431955789408. Its totient is φ = 64801141291008.

The previous prime is 243023423112193. The next prime is 243023423112257. The reversal of 243023423112240 is 42211324320342.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36828187 + ... + 42922746.

Almost surely, 2^{243023423112240} is an apocalyptic number.

243023423112240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243023423112240 is an abundant number, since it is smaller than the sum of its proper divisors (510408532677168).

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

243023423112240 is a wasteful number, since it uses less digits than its factorization.

243023423112240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79763646 (or 79763640 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 243023423112240 its reverse (42211324320342), we get a palindrome (285234747432582).

The spelling of 243023423112240 in words is "two hundred forty-three trillion, twenty-three billion, four hundred twenty-three million, one hundred twelve thousand, two hundred forty".