12311111231321 has 8 divisors (see below), whose sum is σ = 14070923224320. Its totient is φ = 10551569692608.

The previous prime is 12311111231299. The next prime is 12311111231329. The reversal of 12311111231321 is 12313211111321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12311111231321 - 2¹⁴ = 12311111214937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311111231329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67516016 + ... + 67698113.

It is an arithmetic number, because the mean of its divisors is an integer number (1758865403040).

Almost surely, 2^{12311111231321} is an apocalyptic number.

It is an amenable number.

12311111231321 is a deficient number, since it is larger than the sum of its proper divisors (1759811992999).

12311111231321 is a wasteful number, since it uses less digits than its factorization.

12311111231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135227143.

The product of its digits is 216, while the sum is 23.

Adding to 12311111231321 its reverse (12313211111321), we get a palindrome (24624322342642).

The spelling of 12311111231321 in words is "twelve trillion, three hundred eleven billion, one hundred eleven million, two hundred thirty-one thousand, three hundred twenty-one".