12311223112412 has 24 divisors (see below), whose sum is σ = 24644648673120. Its totient is φ = 5271480809280.

The previous prime is 12311223112319. The next prime is 12311223112421. The reversal of 12311223112412 is 21421132211321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198204539 + ... + 198266642.

It is an arithmetic number, because the mean of its divisors is an integer number (1026860361380).

Almost surely, 2^{12311223112412} is an apocalyptic number.

It is an amenable number.

12311223112412 is an abundant number, since it is smaller than the sum of its proper divisors (12333425560708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12311223112412 is a wasteful number, since it uses less digits than its factorization.

12311223112412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396472301 (or 396472299 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

Adding to 12311223112412 its reverse (21421132211321), we get a palindrome (33732355323733).

The spelling of 12311223112412 in words is "twelve trillion, three hundred eleven billion, two hundred twenty-three million, one hundred twelve thousand, four hundred twelve".