20243113533 has 12 divisors (see below), whose sum is σ = 30511359840. Its totient is φ = 12908651976.

The previous prime is 20243113519. The next prime is 20243113537. The reversal of 20243113533 is 33531134202.

It is not a de Polignac number, because 20243113533 - 2⁹ = 20243113021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20243113497 and 20243113506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243113537) 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 11 ways as a sum of consecutive naturals, for example, 48896203 + ... + 48896616.

It is an arithmetic number, because the mean of its divisors is an integer number (2542613320).

Almost surely, 2^20243113533 is an apocalyptic number.

20243113533 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20243113533 is a deficient number, since it is larger than the sum of its proper divisors (10268246307).

20243113533 is a wasteful number, since it uses less digits than its factorization.

20243113533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97792848 (or 97792845 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 20243113533 its reverse (33531134202), we get a palindrome (53774247735).

The spelling of 20243113533 in words is "twenty billion, two hundred forty-three million, one hundred thirteen thousand, five hundred thirty-three".