12303122311 has 4 divisors (see below), whose sum is σ = 12316033152. Its totient is φ = 12290211472.

The previous prime is 12303122291. The next prime is 12303122317. The reversal of 12303122311 is 11322130321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11322130321 = 97 ⋅116722993.

It is a cyclic number.

It is not a de Polignac number, because 12303122311 - 2²¹ = 12301025159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303122317) 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, 6453991 + ... + 6455896.

It is an arithmetic number, because the mean of its divisors is an integer number (3079008288).

Almost surely, 2^12303122311 is an apocalyptic number.

12303122311 is a deficient number, since it is larger than the sum of its proper divisors (12910841).

12303122311 is an equidigital number, since it uses as much as digits as its factorization.

12303122311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12910840.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12303122311 its reverse (11322130321), we get a palindrome (23625252632).

The spelling of 12303122311 in words is "twelve billion, three hundred three million, one hundred twenty-two thousand, three hundred eleven".