20313101203 has 4 divisors (see below), whose sum is σ = 20388057568.
Its totient is φ = 20238144840.
The previous prime is 20313101173. The next prime is 20313101227. The reversal of 20313101203 is 30210131302.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-20313101203 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20313101293) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37477776 + ... + 37478317.
It is an arithmetic number, because the mean of its divisors is an integer number (5097014392).
Almost surely, 220313101203 is an apocalyptic number.
20313101203 is a deficient number, since it is larger than the sum of its proper divisors (74956365).
20313101203 is an equidigital number, since it uses as much as digits as its factorization.
20313101203 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74956364.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 20313101203 its reverse (30210131302), we get a palindrome (50523232505).
The spelling of 20313101203 in words is "twenty billion, three hundred thirteen million, one hundred one thousand, two hundred three".