131444214440 has 64 divisors (see below), whose sum is σ = 368726636160. Its totient is φ = 40969624320.

The previous prime is 131444214367. The next prime is 131444214493. The reversal of 131444214440 is 44412444131.

It is a junction number, because it is equal to n+sod(n) for n = 131444214397 and 131444214406.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21335267 + ... + 21341426.

It is an arithmetic number, because the mean of its divisors is an integer number (5761353690).

Almost surely, 2^131444214440 is an apocalyptic number.

131444214440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131444214440 is an abundant number, since it is smaller than the sum of its proper divisors (237282421720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131444214440 is a wasteful number, since it uses less digits than its factorization.

131444214440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42676722 (or 42676718 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 131444214440 its reverse (44412444131), we get a palindrome (175856658571).

The spelling of 131444214440 in words is "one hundred thirty-one billion, four hundred forty-four million, two hundred fourteen thousand, four hundred forty".