20113310303 has 4 divisors (see below), whose sum is σ = 20121552528. Its totient is φ = 20105068080.

The previous prime is 20113310251. The next prime is 20113310323. The reversal of 20113310303 is 30301331102.

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 20113310303 - 2¹⁴ = 20113293919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113310323) 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 3 ways as a sum of consecutive naturals, for example, 4117451 + ... + 4122332.

It is an arithmetic number, because the mean of its divisors is an integer number (5030388132).

Almost surely, 2^20113310303 is an apocalyptic number.

20113310303 is a deficient number, since it is larger than the sum of its proper divisors (8242225).

20113310303 is an equidigital number, since it uses as much as digits as its factorization.

20113310303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8242224.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 20113310303 its reverse (30301331102), we get a palindrome (50414641405).

The spelling of 20113310303 in words is "twenty billion, one hundred thirteen million, three hundred ten thousand, three hundred three".