243320030205 has 16 divisors (see below), whose sum is σ = 444928055424. Its totient is φ = 111232013760.

The previous prime is 243320030197. The next prime is 243320030237. The reversal of 243320030205 is 502030023342.

It is not a de Polignac number, because 243320030205 - 2³ = 243320030197 is a prime.

It is a super-2 number, since 2×243320030205² (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 15 ways as a sum of consecutive naturals, for example, 1158666706 + ... + 1158666915.

It is an arithmetic number, because the mean of its divisors is an integer number (27808003464).

Almost surely, 2^243320030205 is an apocalyptic number.

It is an amenable number.

243320030205 is a deficient number, since it is larger than the sum of its proper divisors (201608025219).

243320030205 is a wasteful number, since it uses less digits than its factorization.

243320030205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317333636.

The product of its (nonzero) digits is 4320, while the sum is 24.

Adding to 243320030205 its reverse (502030023342), we get a palindrome (745350053547).

The spelling of 243320030205 in words is "two hundred forty-three billion, three hundred twenty million, thirty thousand, two hundred five".