13444232131 has 4 divisors (see below), whose sum is σ = 14666435064. Its totient is φ = 12222029200.

The previous prime is 13444232129. The next prime is 13444232161. The reversal of 13444232131 is 13123244431.

It is a happy number.

13444232131 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: 13123244431 = 11 ⋅1193022221.

It is a cyclic number.

It is not a de Polignac number, because 13444232131 - 2¹ = 13444232129 is a prime.

It is a super-2 number, since 2×13444232131² (a number of 21 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 13444232131.

It is not an unprimeable number, because it can be changed into a prime (13444232161) 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, 611101450 + ... + 611101471.

It is an arithmetic number, because the mean of its divisors is an integer number (3666608766).

Almost surely, 2^13444232131 is an apocalyptic number.

13444232131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13444232131 is a deficient number, since it is larger than the sum of its proper divisors (1222202933).

13444232131 is a wasteful number, since it uses less digits than its factorization.

13444232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222202932.

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

Adding to 13444232131 its reverse (13123244431), we get a palindrome (26567476562).

The spelling of 13444232131 in words is "thirteen billion, four hundred forty-four million, two hundred thirty-two thousand, one hundred thirty-one".