12320313231211 has 4 divisors (see below), whose sum is σ = 12320743934592. Its totient is φ = 12319882527832.

The previous prime is 12320313231167. The next prime is 12320313231217. The reversal of 12320313231211 is 11213231302321.

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 12320313231211 - 2¹³ = 12320313223019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320313231217) 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, 215308780 + ... + 215365993.

It is an arithmetic number, because the mean of its divisors is an integer number (3080185983648).

Almost surely, 2^{12320313231211} is an apocalyptic number.

12320313231211 is a deficient number, since it is larger than the sum of its proper divisors (430703381).

12320313231211 is an equidigital number, since it uses as much as digits as its factorization.

12320313231211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430703380.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12320313231211 its reverse (11213231302321), we get a palindrome (23533544533532).

The spelling of 12320313231211 in words is "twelve trillion, three hundred twenty billion, three hundred thirteen million, two hundred thirty-one thousand, two hundred eleven".