14311221312 has 56 divisors (see below), whose sum is σ = 38091928896. Its totient is φ = 4741831168.

The previous prime is 14311221289. The next prime is 14311221317. The reversal of 14311221312 is 21312211341.

It is a super-2 number, since 2×14311221312² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (14311221317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191103 + ... + 255230.

It is an arithmetic number, because the mean of its divisors is an integer number (680213016).

Almost surely, 2^14311221312 is an apocalyptic number.

14311221312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

14311221312 is an abundant number, since it is smaller than the sum of its proper divisors (23780707584).

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

14311221312 is a wasteful number, since it uses less digits than its factorization.

14311221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446515 (or 446505 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

Adding to 14311221312 its reverse (21312211341), we get a palindrome (35623432653).

The spelling of 14311221312 in words is "fourteen billion, three hundred eleven million, two hundred twenty-one thousand, three hundred twelve".