13312405344 has 48 divisors (see below), whose sum is σ = 39937218048. Its totient is φ = 3803544192.

The previous prime is 13312405297. The next prime is 13312405391. The reversal of 13312405344 is 44350421331.

It is an interprime number because it is at equal distance from previous prime (13312405297) and next prime (13312405391).

It is a tau number, because it is divible by the number of its divisors (48).

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, 9904392 + ... + 9905735.

It is an arithmetic number, because the mean of its divisors is an integer number (832025376).

Almost surely, 2^13312405344 is an apocalyptic number.

13312405344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13312405344 is an abundant number, since it is smaller than the sum of its proper divisors (26624812704).

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

13312405344 is a wasteful number, since it uses less digits than its factorization.

13312405344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19810147 (or 19810139 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 13312405344 its reverse (44350421331), we get a palindrome (57662826675).

The spelling of 13312405344 in words is "thirteen billion, three hundred twelve million, four hundred five thousand, three hundred forty-four".