131643111443 has 16 divisors (see below), whose sum is σ = 141078240000. Its totient is φ = 122559544800.

The previous prime is 131643111419. The next prime is 131643111449. The reversal of 131643111443 is 344111346131.

It is a cyclic number.

It is not a de Polignac number, because 131643111443 - 2²⁸ = 131374675987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131643111449) 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, 343193 + ... + 617306.

It is an arithmetic number, because the mean of its divisors is an integer number (8817390000).

Almost surely, 2^131643111443 is an apocalyptic number.

131643111443 is a deficient number, since it is larger than the sum of its proper divisors (9435128557).

131643111443 is a wasteful number, since it uses less digits than its factorization.

131643111443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960682.

The product of its digits is 10368, while the sum is 32.

Adding to 131643111443 its reverse (344111346131), we get a palindrome (475754457574).

The spelling of 131643111443 in words is "one hundred thirty-one billion, six hundred forty-three million, one hundred eleven thousand, four hundred forty-three".