Adding to 12311412 its reverse (21411321), we get a palindrome (33722733).
Subtracting 12311412 from its reverse (21411321), we obtain a palindrome (9099909).
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
Almost surely, 212311412 is an apocalyptic number.
12311412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12311412 is a wasteful number, since it uses less digits than its factorization.
12311412 is an evil number, because the sum of its binary digits is even.
The square root of 12311412 is about 3508.7621748987. The cubic root of 12311412 is about 230.9063918618.
The spelling of 12311412 in words is "twelve million, three hundred eleven thousand, four hundred twelve".