243404231100 has 72 divisors (see below), whose sum is σ = 704312421120. Its totient is φ = 64902002880.

The previous prime is 243404231093. The next prime is 243404231107. The reversal of 243404231100 is 1132404342.

It is an interprime number because it is at equal distance from previous prime (243404231093) and next prime (243404231107).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243404231107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4128429 + ... + 4186971.

It is an arithmetic number, because the mean of its divisors is an integer number (9782116960).

Almost surely, 2^243404231100 is an apocalyptic number.

243404231100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243404231100 is an abundant number, since it is smaller than the sum of its proper divisors (460908190020).

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

243404231100 is a wasteful number, since it uses less digits than its factorization.

243404231100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72419 (or 72412 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 243404231100 its reverse (1132404342), we get a palindrome (244536635442).

The spelling of 243404231100 in words is "two hundred forty-three billion, four hundred four million, two hundred thirty-one thousand, one hundred".