131311044405225 has 36 divisors (see below), whose sum is σ = 247571232266800. Its totient is φ = 66346632960480.

The previous prime is 131311044405209. The next prime is 131311044405241. The reversal of 131311044405225 is 522504440113131.

131311044405225 is a `hidden beast` number, since 1 + 3 + 13 + 1 + 10 + 4 + 4 + 405 + 225 = 666.

It is an interprime number because it is at equal distance from previous prime (131311044405209) and next prime (131311044405241).

It is not a de Polignac number, because 131311044405225 - 2⁴ = 131311044405209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131311044405225.

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, 15358012615 + ... + 15358021164.

Almost surely, 2^{131311044405225} is an apocalyptic number.

131311044405225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131311044405225 is a deficient number, since it is larger than the sum of its proper divisors (116260187861575).

131311044405225 is a wasteful number, since it uses less digits than its factorization.

131311044405225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30716033814 (or 30716033806 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 131311044405225 its reverse (522504440113131), we get a palindrome (653815484518356).

The spelling of 131311044405225 in words is "one hundred thirty-one trillion, three hundred eleven billion, forty-four million, four hundred five thousand, two hundred twenty-five".