20503264334 has 12 divisors (see below), whose sum is σ = 35776104264. Its totient is φ = 8787113244.

The previous prime is 20503264333. The next prime is 20503264391. The reversal of 20503264334 is 43346230502.

It is a self number, because there is not a number n which added to its sum of digits gives 20503264334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20503264333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104608394 + ... + 104608589.

It is an arithmetic number, because the mean of its divisors is an integer number (2981342022).

Almost surely, 2^20503264334 is an apocalyptic number.

20503264334 is a deficient number, since it is larger than the sum of its proper divisors (15272839930).

20503264334 is a wasteful number, since it uses less digits than its factorization.

20503264334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209216999 (or 209216992 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 20503264334 its reverse (43346230502), we get a palindrome (63849494836).

The spelling of 20503264334 in words is "twenty billion, five hundred three million, two hundred sixty-four thousand, three hundred thirty-four".