13031443144 has 16 divisors (see below), whose sum is σ = 24466075020. Its totient is φ = 6507156480.

The previous prime is 13031443133. The next prime is 13031443169. The reversal of 13031443144 is 44134413031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13027483044 + 3960100 = 114138^2 + 1990^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064169 + ... + 1076344.

Almost surely, 2^13031443144 is an apocalyptic number.

It is an amenable number.

13031443144 is a deficient number, since it is larger than the sum of its proper divisors (11434631876).

13031443144 is a wasteful number, since it uses less digits than its factorization.

13031443144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141280 (or 2141276 counting only the distinct ones).

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

Adding to 13031443144 its reverse (44134413031), we get a palindrome (57165856175).

The spelling of 13031443144 in words is "thirteen billion, thirty-one million, four hundred forty-three thousand, one hundred forty-four".