13340043312 has 20 divisors (see below), whose sum is σ = 34461778680. Its totient is φ = 4446681088.

The previous prime is 13340043271. The next prime is 13340043329. The reversal of 13340043312 is 21334004331.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 3 ways as a sum of consecutive naturals, for example, 138958737 + ... + 138958832.

It is an arithmetic number, because the mean of its divisors is an integer number (1723088934).

Almost surely, 2^13340043312 is an apocalyptic number.

13340043312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13340043312 is an abundant number, since it is smaller than the sum of its proper divisors (21121735368).

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

13340043312 is a wasteful number, since it uses less digits than its factorization.

13340043312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277917580 (or 277917574 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 13340043312 its reverse (21334004331), we get a palindrome (34674047643).

It can be divided in two parts, 1334004331 and 2, that multiplied together give a palindrome (2668008662).

The spelling of 13340043312 in words is "thirteen billion, three hundred forty million, forty-three thousand, three hundred twelve".