12313320203 has 4 divisors (see below), whose sum is σ = 12613645128. Its totient is φ = 12012995280.

The previous prime is 12313320191. The next prime is 12313320223. The reversal of 12313320203 is 30202331321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30202331321 = 211 ⋅143139011.

It is a cyclic number.

It is not a de Polignac number, because 12313320203 - 2³⁰ = 11239578379 is a prime.

It is a super-2 number, since 2×12313320203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12313320223) 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, 150162401 + ... + 150162482.

It is an arithmetic number, because the mean of its divisors is an integer number (3153411282).

Almost surely, 2^12313320203 is an apocalyptic number.

12313320203 is a deficient number, since it is larger than the sum of its proper divisors (300324925).

12313320203 is an equidigital number, since it uses as much as digits as its factorization.

12313320203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300324924.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 12313320203 its reverse (30202331321), we get a palindrome (42515651524).

The spelling of 12313320203 in words is "twelve billion, three hundred thirteen million, three hundred twenty thousand, two hundred three".