13044113012431 has 4 divisors (see below), whose sum is σ = 13046215890312. Its totient is φ = 13042010134552.

The previous prime is 13044113012389. The next prime is 13044113012449. The reversal of 13044113012431 is 13421031144031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13044113012431 is a prime.

It is a super-2 number, since 2×13044113012431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13044113012431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13044113012831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051429636 + ... + 1051442041.

It is an arithmetic number, because the mean of its divisors is an integer number (3261553972578).

Almost surely, 2^{13044113012431} is an apocalyptic number.

13044113012431 is a deficient number, since it is larger than the sum of its proper divisors (2102877881).

13044113012431 is an equidigital number, since it uses as much as digits as its factorization.

13044113012431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102877880.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 13044113012431 its reverse (13421031144031), we get a palindrome (26465144156462).

The spelling of 13044113012431 in words is "thirteen trillion, forty-four billion, one hundred thirteen million, twelve thousand, four hundred thirty-one".