20243324345 has 24 divisors (see below), whose sum is σ = 25903589184. Its totient is φ = 15183792896.

The previous prime is 20243324341. The next prime is 20243324357. The reversal of 20243324345 is 54342334202.

It is not a de Polignac number, because 20243324345 - 2² = 20243324341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20243324341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353402 + ... + 406668.

It is an arithmetic number, because the mean of its divisors is an integer number (1079316216).

Almost surely, 2^20243324345 is an apocalyptic number.

It is an amenable number.

20243324345 is a deficient number, since it is larger than the sum of its proper divisors (5660264839).

20243324345 is a wasteful number, since it uses less digits than its factorization.

20243324345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53569 (or 53552 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 32.

Adding to 20243324345 its reverse (54342334202), we get a palindrome (74585658547).

The spelling of 20243324345 in words is "twenty billion, two hundred forty-three million, three hundred twenty-four thousand, three hundred forty-five".