243020012254400 has 168 divisors, whose sum is σ = 599998285985280. Its totient is φ = 96880192128000.

The previous prime is 243020012254379. The next prime is 243020012254519. The reversal of 243020012254400 is 4452210020342.

It is a super-2 number, since 2×243020012254400² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3478686671 + ... + 3478756529.

It is an arithmetic number, because the mean of its divisors is an integer number (3571418368960).

Almost surely, 2^{243020012254400} is an apocalyptic number.

243020012254400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243020012254400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299999142992640).

243020012254400 is an abundant number, since it is smaller than the sum of its proper divisors (356978273730880).

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

243020012254400 is a wasteful number, since it uses less digits than its factorization.

243020012254400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77183 (or 77168 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 243020012254400 its reverse (4452210020342), we get a palindrome (247472222274742).

The spelling of 243020012254400 in words is "two hundred forty-three trillion, twenty billion, twelve million, two hundred fifty-four thousand, four hundred".