243312055143120 has 60 divisors (see below), whose sum is σ = 817122985191396. Its totient is φ = 64883214704640.

The previous prime is 243312055143043. The next prime is 243312055143137. The reversal of 243312055143120 is 21341550213342.

243312055143120 is a `hidden beast` number, since 2 + 4 + 3 + 3 + 12 + 0 + 5 + 514 + 3 + 120 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 116276884646976 + 127035170496144 = 10783176^2 + 11270988^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168966704241 + ... + 168966705680.

Almost surely, 2^{243312055143120} is an apocalyptic number.

243312055143120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243312055143120 is an abundant number, since it is smaller than the sum of its proper divisors (573810930048276).

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

243312055143120 is a wasteful number, since it uses less digits than its factorization.

243312055143120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337933409940 (or 337933409931 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 243312055143120 in words is "two hundred forty-three trillion, three hundred twelve billion, fifty-five million, one hundred forty-three thousand, one hundred twenty".