243203232100 has 36 divisors (see below), whose sum is σ = 528675395248. Its totient is φ = 97110900000.

The previous prime is 243203232089. The next prime is 243203232101. The reversal of 243203232100 is 1232302342.

It is not an unprimeable number, because it can be changed into a prime (243203232101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2072526 + ... + 2186725.

Almost surely, 2^243203232100 is an apocalyptic number.

243203232100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243203232100 is an abundant number, since it is smaller than the sum of its proper divisors (285472163148).

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

243203232100 is a wasteful number, since it uses less digits than its factorization.

243203232100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259836 (or 4259829 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 243203232100 its reverse (1232302342), we get a palindrome (244435534442).

The spelling of 243203232100 in words is "two hundred forty-three billion, two hundred three million, two hundred thirty-two thousand, one hundred".