131402231443444 has 24 divisors (see below), whose sum is σ = 260676491529440. Its totient is φ = 57455226703584.

The previous prime is 131402231443381. The next prime is 131402231443451. The reversal of 131402231443444 is 444344132204131.

131402231443444 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131402231443444² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131402231443397 and 131402231443406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66499103994 + ... + 66499105969.

Almost surely, 2^{131402231443444} is an apocalyptic number.

It is an amenable number.

131402231443444 is a deficient number, since it is larger than the sum of its proper divisors (129274260085996).

131402231443444 is a wasteful number, since it uses less digits than its factorization.

131402231443444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132998209999 (or 132998209997 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

Adding to 131402231443444 its reverse (444344132204131), we get a palindrome (575746363647575).

The spelling of 131402231443444 in words is "one hundred thirty-one trillion, four hundred two billion, two hundred thirty-one million, four hundred forty-three thousand, four hundred forty-four".