243545620120 has 48 divisors (see below), whose sum is σ = 602322547680. Its totient is φ = 88562041920.

The previous prime is 243545620091. The next prime is 243545620139. The reversal of 243545620120 is 21026545342.

It is a super-3 number, since 3×243545620120³ (a number of 35 digits) contains 333 as substring.

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, 25154832 + ... + 25164511.

It is an arithmetic number, because the mean of its divisors is an integer number (12548386410).

Almost surely, 2^243545620120 is an apocalyptic number.

243545620120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243545620120 is an abundant number, since it is smaller than the sum of its proper divisors (358776927560).

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

243545620120 is a wasteful number, since it uses less digits than its factorization.

243545620120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50319376 (or 50319361 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 243545620120 in words is "two hundred forty-three billion, five hundred forty-five million, six hundred twenty thousand, one hundred twenty".