131311044405224 has 144 divisors (see below), whose sum is σ = 263804563608300. Its totient is φ = 61201152875520.

The previous prime is 131311044405209. The next prime is 131311044405241. The reversal of 131311044405224 is 422504440113131.

It can be written as a sum of positive squares in 6 ways, for example, as 107327320812100 + 23983723593124 = 10359890^2 + 4897318^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 153221755004 + ... + 153221755860.

Almost surely, 2^{131311044405224} is an apocalyptic number.

It is an amenable number.

131311044405224 is an abundant number, since it is smaller than the sum of its proper divisors (132493519203076).

131311044405224 is an frugal number, since it uses more digits than its factorization.

131311044405224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 131311044405224 its reverse (422504440113131), we get a palindrome (553815484518355).

The spelling of 131311044405224 in words is "one hundred thirty-one trillion, three hundred eleven billion, forty-four million, four hundred five thousand, two hundred twenty-four".