12320203231311 has 16 divisors (see below), whose sum is σ = 17310866711040. Its totient is φ = 7778575719200.

The previous prime is 12320203231267. The next prime is 12320203231393. The reversal of 12320203231311 is 11313230202321.

It is a cyclic number.

It is not a de Polignac number, because 12320203231311 - 2⁷ = 12320203231183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320203235311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 883922091 + ... + 883936028.

It is an arithmetic number, because the mean of its divisors is an integer number (1081929169440).

Almost surely, 2^{12320203231311} is an apocalyptic number.

12320203231311 is a deficient number, since it is larger than the sum of its proper divisors (4990663479729).

12320203231311 is a wasteful number, since it uses less digits than its factorization.

12320203231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767858246.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12320203231311 its reverse (11313230202321), we get a palindrome (23633433433632).

The spelling of 12320203231311 in words is "twelve trillion, three hundred twenty billion, two hundred three million, two hundred thirty-one thousand, three hundred eleven".