131011220311443 has 24 divisors (see below), whose sum is σ = 197484098093568. Its totient is φ = 83535809152752.

The previous prime is 131011220311331. The next prime is 131011220311459. The reversal of 131011220311443 is 344113022110131.

131011220311443 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 1 + 1 + 2 + 203 + 11 + 443 = 666.

It is not a de Polignac number, because 131011220311443 - 2⁸ = 131011220311187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131011220311483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26415355 + ... + 30980532.

It is an arithmetic number, because the mean of its divisors is an integer number (8228504087232).

Almost surely, 2^{131011220311443} is an apocalyptic number.

131011220311443 is a deficient number, since it is larger than the sum of its proper divisors (66472877782125).

131011220311443 is a wasteful number, since it uses less digits than its factorization.

131011220311443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57406943 (or 57406940 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 131011220311443 its reverse (344113022110131), we get a palindrome (475124242421574).

The spelling of 131011220311443 in words is "one hundred thirty-one trillion, eleven billion, two hundred twenty million, three hundred eleven thousand, four hundred forty-three".