12231021320311 has 4 divisors (see below), whose sum is σ = 12231028504800. Its totient is φ = 12231014135824.

The previous prime is 12231021320281. The next prime is 12231021320333. The reversal of 12231021320311 is 11302312013221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12231021320311 - 2¹³ = 12231021312119 is a prime.

It is a super-2 number, since 2×12231021320311² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231021020311) 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, 565395 + ... + 4978123.

It is an arithmetic number, because the mean of its divisors is an integer number (3057757126200).

Almost surely, 2^{12231021320311} is an apocalyptic number.

12231021320311 is a deficient number, since it is larger than the sum of its proper divisors (7184489).

12231021320311 is an equidigital number, since it uses as much as digits as its factorization.

12231021320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7184488.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12231021320311 its reverse (11302312013221), we get a palindrome (23533333333532).

The spelling of 12231021320311 in words is "twelve trillion, two hundred thirty-one billion, twenty-one million, three hundred twenty thousand, three hundred eleven".