12311320201 has 4 divisors (see below), whose sum is σ = 12573263232. Its totient is φ = 12049377172.

The previous prime is 12311320163. The next prime is 12311320247. The reversal of 12311320201 is 10202311321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10202311321 = 163 ⋅62590867.

It is a cyclic number.

It is not a de Polignac number, because 12311320201 - 2²³ = 12302931593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311330201) 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, 130971445 + ... + 130971538.

It is an arithmetic number, because the mean of its divisors is an integer number (3143315808).

Almost surely, 2^12311320201 is an apocalyptic number.

It is an amenable number.

12311320201 is a deficient number, since it is larger than the sum of its proper divisors (261943031).

12311320201 is an equidigital number, since it uses as much as digits as its factorization.

12311320201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261943030.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12311320201 its reverse (10202311321), we get a palindrome (22513631522).

The spelling of 12311320201 in words is "twelve billion, three hundred eleven million, three hundred twenty thousand, two hundred one".