20310312203 has 8 divisors (see below), whose sum is σ = 20342427648. Its totient is φ = 20278223784.

The previous prime is 20310312193. The next prime is 20310312223. The reversal of 20310312203 is 30221301302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20310312203 - 2⁸ = 20310311947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310312223) 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 7 ways as a sum of consecutive naturals, for example, 1895126 + ... + 1905812.

It is an arithmetic number, because the mean of its divisors is an integer number (2542803456).

Almost surely, 2^20310312203 is an apocalyptic number.

20310312203 is a deficient number, since it is larger than the sum of its proper divisors (32115445).

20310312203 is a wasteful number, since it uses less digits than its factorization.

20310312203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13513.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20310312203 its reverse (30221301302), we get a palindrome (50531613505).

The spelling of 20310312203 in words is "twenty billion, three hundred ten million, three hundred twelve thousand, two hundred three".