131344433455443 has 16 divisors (see below), whose sum is σ = 196797010663680. Its totient is φ = 77313111331104.

The previous prime is 131344433455427. The next prime is 131344433455483. The reversal of 131344433455443 is 344554334443131.

It is a happy number.

It is not a de Polignac number, because 131344433455443 - 2⁴ = 131344433455427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131344433455483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73213172713 + ... + 73213174506.

It is an arithmetic number, because the mean of its divisors is an integer number (12299813166480).

Almost surely, 2^{131344433455443} is an apocalyptic number.

131344433455443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131344433455443 is a deficient number, since it is larger than the sum of its proper divisors (65452577208237).

131344433455443 is a wasteful number, since it uses less digits than its factorization.

131344433455443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146426347258.

The product of its digits is 24883200, while the sum is 51.

Adding to 131344433455443 its reverse (344554334443131), we get a palindrome (475898767898574).

The spelling of 131344433455443 in words is "one hundred thirty-one trillion, three hundred forty-four billion, four hundred thirty-three million, four hundred fifty-five thousand, four hundred forty-three".