20320113302203 has 16 divisors (see below), whose sum is σ = 23872707615456. Its totient is φ = 17051752650240.

The previous prime is 20320113302131. The next prime is 20320113302213. The reversal of 20320113302203 is 30220331102302.

It is not a de Polignac number, because 20320113302203 - 2¹³ = 20320113294011 is a prime.

It is a super-2 number, since 2×20320113302203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20320113302213) 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 15 ways as a sum of consecutive naturals, for example, 50153251 + ... + 50556787.

It is an arithmetic number, because the mean of its divisors is an integer number (1492044225966).

Almost surely, 2^{20320113302203} is an apocalyptic number.

20320113302203 is a deficient number, since it is larger than the sum of its proper divisors (3552594313253).

20320113302203 is a wasteful number, since it uses less digits than its factorization.

20320113302203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755694.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20320113302203 its reverse (30220331102302), we get a palindrome (50540444404505).

The spelling of 20320113302203 in words is "twenty trillion, three hundred twenty billion, one hundred thirteen million, three hundred two thousand, two hundred three".