20115324203 has 12 divisors (see below), whose sum is σ = 22057414560. Its totient is φ = 18332941536.

The previous prime is 20115324197. The next prime is 20115324221. The reversal of 20115324203 is 30242351102.

It is not a de Polignac number, because 20115324203 - 2⁸ = 20115323947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20115324283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 739976 + ... + 766677.

It is an arithmetic number, because the mean of its divisors is an integer number (1838117880).

Almost surely, 2^20115324203 is an apocalyptic number.

20115324203 is a deficient number, since it is larger than the sum of its proper divisors (1942090357).

20115324203 is a wasteful number, since it uses less digits than its factorization.

20115324203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506758 (or 1506745 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20115324203 its reverse (30242351102), we get a palindrome (50357675305).

The spelling of 20115324203 in words is "twenty billion, one hundred fifteen million, three hundred twenty-four thousand, two hundred three".