20235336503 has 4 divisors (see below), whose sum is σ = 20705925768. Its totient is φ = 19764747240.

The previous prime is 20235336493. The next prime is 20235336523. The reversal of 20235336503 is 30563353202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20235336503 - 2¹⁰ = 20235335479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20235336503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20235336523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235294568 + ... + 235294653.

It is an arithmetic number, because the mean of its divisors is an integer number (5176481442).

Almost surely, 2^20235336503 is an apocalyptic number.

20235336503 is a deficient number, since it is larger than the sum of its proper divisors (470589265).

20235336503 is an equidigital number, since it uses as much as digits as its factorization.

20235336503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470589264.

The product of its (nonzero) digits is 48600, while the sum is 32.

Adding to 20235336503 its reverse (30563353202), we get a palindrome (50798689705).

The spelling of 20235336503 in words is "twenty billion, two hundred thirty-five million, three hundred thirty-six thousand, five hundred three".