243133100000 has 648 divisors, whose sum is σ = 733022067960. Its totient is φ = 79121280000.

The previous prime is 243133099997. The next prime is 243133100011. The reversal of 243133100000 is 1331342.

It is a happy number.

It is a super-2 number, since 2×243133100000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 4120899971 + ... + 4120900029.

It is an arithmetic number, because the mean of its divisors is an integer number (1131206895).

Almost surely, 2^243133100000 is an apocalyptic number.

243133100000 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 243133100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366511033980).

243133100000 is an abundant number, since it is smaller than the sum of its proper divisors (489888967960).

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

243133100000 is an frugal number, since it uses more digits than its factorization.

243133100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 243133100000 its reverse (1331342), we get a palindrome (243134431342).

The spelling of 243133100000 in words is "two hundred forty-three billion, one hundred thirty-three million, one hundred thousand".