243343320100 has 72 divisors (see below), whose sum is σ = 529752163136. Its totient is φ = 97025040000.

The previous prime is 243343320091. The next prime is 243343320113. The reversal of 243343320100 is 1023343342.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 43599310 + ... + 43604890.

Almost surely, 2^243343320100 is an apocalyptic number.

243343320100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243343320100 is an abundant number, since it is smaller than the sum of its proper divisors (286408843036).

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

243343320100 is a wasteful number, since it uses less digits than its factorization.

243343320100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6917 (or 6910 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 243343320100 its reverse (1023343342), we get a palindrome (244366663442).

The spelling of 243343320100 in words is "two hundred forty-three billion, three hundred forty-three million, three hundred twenty thousand, one hundred".