131443443344 has 10 divisors (see below), whose sum is σ = 254671671510. Its totient is φ = 65721721664.

The previous prime is 131443443319. The next prime is 131443443371. The reversal of 131443443344 is 443344344131.

131443443344 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 124750240000 + 6693203344 = 353200^2 + 81812^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131443443298 and 131443443307.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4107607589 + ... + 4107607620.

It is an arithmetic number, because the mean of its divisors is an integer number (25467167151).

Almost surely, 2^131443443344 is an apocalyptic number.

It is an amenable number.

131443443344 is a deficient number, since it is larger than the sum of its proper divisors (123228228166).

131443443344 is an equidigital number, since it uses as much as digits as its factorization.

131443443344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8215215217 (or 8215215211 counting only the distinct ones).

The product of its digits is 331776, while the sum is 38.

Adding to 131443443344 its reverse (443344344131), we get a palindrome (574787787475).

The spelling of 131443443344 in words is "one hundred thirty-one billion, four hundred forty-three million, four hundred forty-three thousand, three hundred forty-four".