13444312343 has 32 divisors (see below), whose sum is σ = 17062860288. Its totient is φ = 10288425600.

The previous prime is 13444312327. The next prime is 13444312411. The reversal of 13444312343 is 34321344431.

It is a cyclic number.

It is not a de Polignac number, because 13444312343 - 2⁴ = 13444312327 is a prime.

It is a super-2 number, since 2×13444312343² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13444318343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3694721 + ... + 3698357.

It is an arithmetic number, because the mean of its divisors is an integer number (533214384).

Almost surely, 2^13444312343 is an apocalyptic number.

13444312343 is a deficient number, since it is larger than the sum of its proper divisors (3618547945).

13444312343 is a wasteful number, since it uses less digits than its factorization.

13444312343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4503.

The product of its digits is 41472, while the sum is 32.

Adding to 13444312343 its reverse (34321344431), we get a palindrome (47765656774).

The spelling of 13444312343 in words is "thirteen billion, four hundred forty-four million, three hundred twelve thousand, three hundred forty-three".