13344216731 has 4 divisors (see below), whose sum is σ = 13344903264. Its totient is φ = 13343530200.

The previous prime is 13344216713. The next prime is 13344216733. The reversal of 13344216731 is 13761244331.

13344216731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13761244331 = 41597 ⋅330823.

It is a cyclic number.

It is not a de Polignac number, because 13344216731 - 2¹⁴ = 13344200347 is a prime.

It is a super-2 number, since 2×13344216731² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13344216691 and 13344216700.

It is not an unprimeable number, because it can be changed into a prime (13344216733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313235 + ... + 353276.

It is an arithmetic number, because the mean of its divisors is an integer number (3336225816).

Almost surely, 2^13344216731 is an apocalyptic number.

13344216731 is a deficient number, since it is larger than the sum of its proper divisors (686533).

13344216731 is an equidigital number, since it uses as much as digits as its factorization.

13344216731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686532.

The product of its digits is 36288, while the sum is 35.

The spelling of 13344216731 in words is "thirteen billion, three hundred forty-four million, two hundred sixteen thousand, seven hundred thirty-one".