20313033203 has 4 divisors (see below), whose sum is σ = 20785429368. Its totient is φ = 19840637040.

The previous prime is 20313033199. The next prime is 20313033233. The reversal of 20313033203 is 30233031302.

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 20313033203 - 2² = 20313033199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313033233) 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, 236198018 + ... + 236198103.

It is an arithmetic number, because the mean of its divisors is an integer number (5196357342).

Almost surely, 2^20313033203 is an apocalyptic number.

20313033203 is a deficient number, since it is larger than the sum of its proper divisors (472396165).

20313033203 is an equidigital number, since it uses as much as digits as its factorization.

20313033203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472396164.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20313033203 its reverse (30233031302), we get a palindrome (50546064505).

The spelling of 20313033203 in words is "twenty billion, three hundred thirteen million, thirty-three thousand, two hundred three".