13344440131 has 16 divisors (see below), whose sum is σ = 15105961728. Its totient is φ = 11682266400.

The previous prime is 13344440101. The next prime is 13344440143. The reversal of 13344440131 is 13104444331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13344440131 - 2¹¹ = 13344438083 is a prime.

It is a super-2 number, since 2×13344440131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13344440131.

It is not an unprimeable number, because it can be changed into a prime (13344440101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165096 + ... + 232261.

It is an arithmetic number, because the mean of its divisors is an integer number (944122608).

Almost surely, 2^13344440131 is an apocalyptic number.

13344440131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13344440131 is a deficient number, since it is larger than the sum of its proper divisors (1761521597).

13344440131 is a wasteful number, since it uses less digits than its factorization.

13344440131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397482.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 13344440131 its reverse (13104444331), we get a palindrome (26448884462).

The spelling of 13344440131 in words is "thirteen billion, three hundred forty-four million, four hundred forty thousand, one hundred thirty-one".