20113313203 has 4 divisors (see below), whose sum is σ = 20185924720. Its totient is φ = 20040701688.

The previous prime is 20113313201. The next prime is 20113313219. The reversal of 20113313203 is 30231331102.

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 20113313203 - 2¹ = 20113313201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113313201) 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, 36305343 + ... + 36305896.

It is an arithmetic number, because the mean of its divisors is an integer number (5046481180).

Almost surely, 2^20113313203 is an apocalyptic number.

20113313203 is a deficient number, since it is larger than the sum of its proper divisors (72611517).

20113313203 is an equidigital number, since it uses as much as digits as its factorization.

20113313203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72611516.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20113313203 its reverse (30231331102), we get a palindrome (50344644305).

The spelling of 20113313203 in words is "twenty billion, one hundred thirteen million, three hundred thirteen thousand, two hundred three".