243204313100 has 36 divisors (see below), whose sum is σ = 603146698224. Its totient is φ = 83384335680.

The previous prime is 243204313081. The next prime is 243204313103. The reversal of 243204313100 is 1313402342.

It is a super-2 number, since 2×243204313100² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243204313103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173716667 + ... + 173718066.

Almost surely, 2^243204313100 is an apocalyptic number.

243204313100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243204313100 is an abundant number, since it is smaller than the sum of its proper divisors (359942385124).

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

243204313100 is a wasteful number, since it uses less digits than its factorization.

243204313100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347434754 (or 347434747 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 243204313100 its reverse (1313402342), we get a palindrome (244517715442).

The spelling of 243204313100 in words is "two hundred forty-three billion, two hundred four million, three hundred thirteen thousand, one hundred".