13212340344 has 48 divisors (see below), whose sum is σ = 40895340720. Its totient is φ = 3774954240.

The previous prime is 13212340333. The next prime is 13212340357. The reversal of 13212340344 is 44304321231.

13212340344 is a `hidden beast` number, since 1 + 3 + 212 + 3 + 403 + 44 = 666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13106977 + ... + 13107984.

It is an arithmetic number, because the mean of its divisors is an integer number (851986265).

Almost surely, 2^13212340344 is an apocalyptic number.

13212340344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13212340344 is an abundant number, since it is smaller than the sum of its proper divisors (27683000376).

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

13212340344 is a wasteful number, since it uses less digits than its factorization.

13212340344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26214980 (or 26214973 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 13212340344 its reverse (44304321231), we get a palindrome (57516661575).

The spelling of 13212340344 in words is "thirteen billion, two hundred twelve million, three hundred forty thousand, three hundred forty-four".