13344115531 has 4 divisors (see below), whose sum is σ = 13381917912. Its totient is φ = 13306313152.

The previous prime is 13344115493. The next prime is 13344115537. The reversal of 13344115531 is 13551144331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13344115531 - 2¹¹ = 13344113483 is a prime.

It is a super-2 number, since 2×13344115531² (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 = 13344115493 and 13344115502.

It is not an unprimeable number, because it can be changed into a prime (13344115537) 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 3 ways as a sum of consecutive naturals, for example, 18900661 + ... + 18901366.

It is an arithmetic number, because the mean of its divisors is an integer number (3345479478).

Almost surely, 2^13344115531 is an apocalyptic number.

13344115531 is a deficient number, since it is larger than the sum of its proper divisors (37802381).

13344115531 is an equidigital number, since it uses as much as digits as its factorization.

13344115531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37802380.

The product of its digits is 10800, while the sum is 31.

Adding to 13344115531 its reverse (13551144331), we get a palindrome (26895259862).

The spelling of 13344115531 in words is "thirteen billion, three hundred forty-four million, one hundred fifteen thousand, five hundred thirty-one".